Glossary of Medical Terms
A
Abdomen
The cavity of the body which extends from the diaphragm at the base of the thorax to the floor of the pelvis.
Abducent nerve
The 6th cranial nerve which serves muscles of the eye.
Abduction
Moving a limb outwards from the trunk.
Abductor
A muscle which tends to pull a limb away from the middle line.
Ablation
Cutting away tissue or abnormal growth.
Abortion
Premature or untimely expulsion of the fetus.
Abrasion
A portion of a surface from which the skin has been removed by rubbing.
Abscess
A collection of pus.
Accessory nerve
The 11th cranial nerve which serves the neck muscles.
Accommodation
Adjustments of the eye to provide clear and distinct pictures of objects at various distances.
Acetabulum
A socket on the lower part of the pelvic bone in which the head of the hipbone is situated.
Achilles tendon
The tendon which connects the calf muscles to the heelbone.
Acidosis
A condition in which the acidity of body fluids and tissues is abnormally high
Acrocyanosis
Slow blood circulation causing bluish discolouration of hands and feet.
Acromioclavicular joint
The joint between the clavicle and the acromion.
Acromion
The outer end of the shoulder blade.
Acroparaesthesia
A tingling sensation in hands and feet.
Acuity
Sharpness or clearness of vision.
Acute
Severe symptoms which are relatively brief in duration.
Acute–on-chronic
A flare up of a pre-existing condition which settles after treatment although the chronic condition remains.
Addison’s disease
Caused by underactivity of the adrenal glands resulting in extreme weakness.
Adduction
The bringing of a limb towards the trunk.
Adductors
Any muscle which draws a part towards the medial line.
Adenitis
Inflammation of a gland.
Adenocarcinoma
Amalignant tumour originating in a gland.
Adenoidectomy
An operation to remove adenoids.
Adenoids
A mass of tissue located at the back of the mouth.
Adenoma
A benign tumour or swelling of the glandular tissue.
Adenopathy
Adiseased gland.
Adhesion
The union of normally separate parts of new tissue produced as a result of inflammation.
Adnerval
Near a nerve.
Adrenal glands
The glands of the endocrine system which are located above the kidneys.
Adventitia
Loose tissue on the outer surface of a blood vessel.
Aerobic
Any organism which requires oxygen in order to live.
Aids
Acquired Immune Deficiency Syndrome.
Akinesia
Loss of muscular response.
Alexia
Difficulty in reading.
Alimentary
Canal The tubular passage extending from the mouth to the anus through which food is passed and digested.
Allergen
A substance that causes an allergy.
Allergy
Extreme sensitivity to a substance that causes the body to react to any contact with that substance.
Alopecia
Loss of hair.
Alveolar process
One of the four projections which make up each jaw bone.
Alveolus
The part of the upper or lower jawbone that holds the roots of the teeth.
Amblyopia
A condition of reduced or dimmed vision not caused by disease.
Amine
A type of chemical compound derived from ammonia which is present in the human body.
Amnesia
Lack of ability to recall events.
Amniocentesis
The puncture of the amniotic sac to drain or sample amniotic fluid.
Amniotic fluid
The fluid contained within the amniotic sac.
Amniotic sac
The pouch containing the embrionic fetus.
Anaemia
A deficiency of red blood cells.
Anaerobic
An organism which does not require oxygen in order to live.
Anaesthetic
A substance which causes a loss of bodily feeling.
Analgesic
Any medication intended to relieve pain.
Anastomosis
Joining up two ends of a hollow organ.
Aneurysm
A localised dilation of the walls of a blood vessel, (usually an artery).
Angina
A disease causing sudden intense pain in the chest as a result of a lack of adequate blood supply to the heart muscles.
Angina pectoris
Angina.
Angiocardiogram
A series of X-ray films of the heart after the intravenous injection of a radio-opaque substance.
Angiogram
A series of X-ray films taken after a radio-opaque substance is introduced into the blood vessels.
Angioma
A tumour consisting of a mass of blood vessels.
Ankylosing spondylitis
A disease of the spine causing gradual loss of mobility in the joints between the vertebrae.
Ankylosis
Immobility or stiffness of a joint.
Anodyne
Treatment to ease pain.
Anosmia
Loss of sense of smell.
Anoxia
Without oxygen
Anterior
The front part.
Anteroposterior
Extending from the front to the back.
Antibiotic
A chemical substance capable of destroying micro-organisms (including bacteria).
Antibody
A protein produced in the blood by the presence of antigen.
Anti-D
An antibody which must be given to a mother with a rhesus negative blood group who delivers or aborts a rhesus positive baby or fetus in order to prevent the mother developing antibodies which will damage a subsequent baby.
Antigen
A substance that stimulates the production of antibodies.
Antipyretic
Fever reducing drug.
Antrectomy
An operation to remove part of the stomach.
Anuria
Failure of secretion of urine (a symptom of kidney failure).
Anus
The excretory opening at the end of the alimentary canal situated in the perineum.
Aorta
The largest blood vessel in the body which conveys oxygen rich blood from the heart to all parts of the body except the lungs.
Apgar score
A system for rating an infant’s physical condition immediately after birth by assessing heart rate, colour, respiration and muscle tone. 10 = Excellent. 0 = Dead.
Aphasia
Absence of ability to speak.
Apoplexy
A stroke.
Appendectomy
An operation to remove the appendix.
Appendicitis
An inflamed condition of the appendix.
Appendix
A small worm like structure which is attached to the caecum and which has no apparent function.
Apraxia
A failure of the brain resulting in loss of memory of how to make certain movements.
Arachnoid
The middle of the three membranes that cover the spinal cord and brain.
Arachnoiditis
Inflammation of the arachnoid.
Arrhythmia
Any variation from the normal rhythms of the heart beat.
Arteriography
The visualisation of arteries by means of X-rays after injection of radio-opaque material.
Arteriosclerosis
Hardening of the arteries.
Artery
A vessel carrying blood from the heart to different parts of the body.
Arthritis
Inflammation of a joint.
Arthrodesis
An operation to fuse joints.
Arthropathy
Disease of a joint.
B
Babinski’s reflex
A movement of the great toe towards the sole of the foot upon stimulation of the sole of the foot.
Bacteria
A parasitic micro organism which causes disease.
Barium meal
A preparation of barium sulphate which is radio-opaque and which is swallowed by a patient prior to x-ray examination of the alimentary canal
Barotitis
Earache caused by eg climbing or descending in an aeroplane.
Barotrauma
Injury to the middle ear caused by Barotitis.
Basal
Relating to a base.
Basal metabolic rate
A test of thyroid function.
Bells palsy
Paralysis of the face.
Biceps
A muscle that has two heads.
Bicuspid
A premolar tooth.
Bilateral
Occurring on both sides.
Bilateral carotid bruits
Noises which suggest narrowing of the carotid arteries by atheroma.
Bile
An alkaline fluid which is secreted by the liver and stored in the gall bladder.
Bile Duct
A duct conveying bile from the liver via the gall bladder to the intestine.
Binocular
Involving both eyes.
Biopsy
The removal and examination of living tissue for diagnostic purposes.
Bladder
The pouch situated in the anterior part of the pelvis which serves as a storage tank for urine before it is discharged.
Blepharitis
Inflammation of the eyelids.
Blood pressure
The pressure of blood circulating within the vascular system.
Bowel
The intestine
Brachial
Relating to the arm.
Brachioradialis muscle
A muscle on the side of the forearm.
Bradycardia
Slowing of the heart rate.
Bright’s disease
Nephritis.
Bronchitis
An inflammation of the bronchus.
Bronchus
The air passages between the trachea and the lungs.
Bruise
The visible sign of a haematoma.
Bunion
An inflammatory swelling of the bursa of the joint of the big toe.
Bursa
A small fluid filled sac which reduces friction in a joint.
Bursitis
Inflammation of a bursa (eg. housemaid’s knee).
Byssinosis
A form of lung disease, resulting from inhalation of cotton flax or hemp dust.
C
Cacosmia
Irregularity in the sense of smell caused by brain damage.
Caecum
Cecum
Caesarean section
An incision in the abdominal wall in order to deliver a baby.
Calcification
The hardening of organic tissue caused by the accumulation of calcium.
Calcium
A metallic substance present in bones and teeth.
Callus
Bony material which grows around and between two ends of a fractured bone whilst healing.
Cancer
A malignant tumour arising from epithelial cells.
Canine teeth
The four teeth (two in each jaw) situated between the incisors and the premolars.
Canthus
The corner (e.g. of the eye).
Capitate bone
The largest of the carpal bones.
Capsulitis
Inflammation around a joint.
Carcinogen
Any substance which causes cancer.
Carcinoma
A malignant cancerous tumour.
Cardiac
Relating to the heart.
Caries
Tooth or bone decay.
Carotid
Relating to or situated near one of the carotid arteries.
Carotid arteries
The two main arteries that carry blood to the head and neck.
Carpal
Relating to the wrist.
Carpal bones
The eight bones which form the wrist.
Carpus
Bones of the wrist.
Cartilage
Tissue situated at the ends of bones which is firm, flexible and slightly elastic (gristle).
Cataract
Opacity in the lens of the eye which may be partial or complete.
Catharsis
Cleansing the bowels.
Catheter
A flexible tube which is inserted into the body to extract or introduce fluid.
Cat scan
Computerized axial tomography.
Cauda equina
A sheaf of nerve roots which runs down through the lower parts of the spinal canal.
Causalgia
A burning pain or intense hypersensitivity in a peripheral nerve.
Cauterisation
The process of burning a part with an instrument or other agent.
Cecum
The pouch which forms the beginning of the large intestine.
Cell
The smallest unit of an organism that is able to function independently.
Cellulitis
An inflammation of tissue.
Cephalalgia
Pain in the head.
Cephalic
Relating to the head
Cerebellum
The part of the brain whose function is co-ordination of voluntary movement and maintenance of body equilibrium.
Cerebral
Relating to the cerebrum.
Cerebrospinal
Relating to the brain and the spine.
Cerebrovascular accident
Stroke
Cerebrum
The dominant part of the brain associated with intellectual function, emotion and personality.
Cervical
Relating to the cervix.
Cervical spondylosis
Degeneration of the bones of the neck.
Cervix
The lower part of the uterus that extends into the vagina.
Chest
The front part of the trunk from the head to the abdomen.
Cholecystectomy
An operation to remove the gall bladder.
Chondritis
Inflammation in a cartilage.
Chondromalacia
A condition of abnormal softness of cartilage.
Choroid
The main part of the vascular coat of the eye which is composed of two main layers, the suprachoroid lamina and the choroid proper.
Chromosome
A part of a cell which contains the genes.
Chronic
Slowly developing and long lasting.
Cicatrix
The scar of a healed wound.
Cirrhosis
Chronic disease of the liver.
Claudication
Pain which develops after a certain amount of exertion.
Clavicle
The bones connecting the shoulder blade with the breastbone.
Clawfoot
A deformity of the foot caused by paralysis of the muscles.
Clawhand
A deformity of the hand characterized by a bending forward of the fingers.
Cleft
A fissure, notch, gap or depression.
Clitoris
A small erectile organ in the female at the front of the vulva.
Closed fracture
One that does not produce an open wound.
Clostridium
A type of bacteria.
Coccydynia
Pain in the coccyx and surrounding area.
Coccygeal
Relating to the coccyx.
Coccygectomy
An operation to remove the coccyx.
Coccyx
A small triangular bone attached to the lower part of the sacrum.
Cochlea
The inner part of the ear.
Cognitive function
The ability to understand and perceive.
Colitis
Inflammation of the colon.
Collapsed lung
A condition existing when the lung contains no air.
Collar bone
The clavicle.
Colles’ fracture
A fracture across the lower end of the radius.
Colon
The part of the large intestine between the caecum and the rectum.
Colostomy
A temporary or permanent artificial opening made through the abdominal wall into the colon.
Colour blindness
The inability to perceive one or more colours.
Colposcopy
Examination of the cervix through a microscope
Coma
A state of unconsciousness from which the person cannot be roused by external stimuli.
Comminuted fracture
Bone fractured into several pieces.
Compound fracture
Where there is more than one break.
Compression fracture
A fracture associated with vertical crushing.
Computerised axial
A computerised analysis of X-rays focused at different levels tomography which produce detailed images of a particular structure.
Concussion
An injury resulting from a blow or impact.
Condyle
A rounded bulge at the end of some bones.
Congenital
Present at birth.
Conjunctivitis
Inflammation of the mucous membranes lining the eyelids.
Connective tissue
A jelly like substance which supports organs, fills the spaces around them and supports ligaments and tendons.
Contraceptive
Any agent or measure used to prevent conception.
Contusion
A bruise.
Convulsion
A violent and involuntary contraction of a muscle.
Cordectomy
An operation to remove a vocal cord.
Cornea
The transparent membrane covering the anterior part of the eyeball.
Coronary arteries
Arteries supplying blood to the walls of the heart.
Coronoid process
The swelling towards the top of the ulna.
Corpuscle
A cell which is suspended in fluid.
Cortex
The outer part of an organ.
Costal
Relating to the ribs.
Costavertebral
Relating to a rib and a vertebra.
Coxa
Hip.
Cranial
Relating to the cranium.
Cranial nerves
The nerves arising from the brain.
Craniectomy
An operation to cut away a portion of the skull.
Cranioplasty
The surgical correction or restoration of defects of the skull.
Craniosacral
Relating to the skull and the sacrum.
Craniotomy
An operation on the skull.
Creatine
A substance mainly comprised of nitrogen which is present in muscle.
Creatinine
A waste produce of creatine which is excreted by urine.
Cranium
The skull.
Crepitations
Crackling noises caused by congestion or inflammation of the lungs.
Crepitus
Grating caused by bone running against bone or roughened cartilage (usually associated with the movement of an arthritic joint).
Cruciate
Shaped like a cross.
Crural
Relating to the leg or thigh.
Crystalline
Having the characteristic of crystal.
Cubitus
Elbow.
Cuboid bone
A bone on the side of the foot and in front of the heel bone.
Cuneiform bone
One of the bones of the ankle.
Curette
An instrument for removing dead tissue from the wall of a cavity.
Curettage
The process of using a curette.
Cushing’s syndrome
Caused by malfunctioning adrenal glands resulting in obesity, high blood pressure and osteoporosis.
Cutaneous
Affecting or asociated with the skin.
Cyanosis
Blueness of skin owing to circulation of imperfectly oxygenated blood.
Cyclitis
A form of inflammation of the eye.
Cycloplegia
A form of paralysis of the eye muscle.
Cyst
A blister like pouch containing fluid from degenerating, inflamed or neoplastic tissue.
Cystic duct
The normal drainage channel for the gall bladder.
Cystic fibrosis
A genetic disease affecting the lungs.
Cystitis
Inflammation of the bladder.
D
D & C
A surgical procedure intended to achieve dilation of the cervix and curettage of the uterus
Dactylitis
Inflammation of a digit (e.g. toe, finger).
Daltonism
Inability to distinguish between red and green.
Debridement
The excision of dead tissue from a wound in order to remove food on which organisms can grow.
Debriding
The removal of alien matter in a wound (such as dirt, dead tissue, etc) in order to clean the wound to facilitate healing.
Decubitus ulcer
Bedsore.
Defibrillation
Restoration of heart rhythm by means of an electric shock.
Dehydration
The loss or restriction of water.
Deltoid muscle
The muscle covering the shoulder region and running from the scapula and clavicle to the middle of the humerus.
Dermal
Relating to the skin.
Dermatitis
Inflammation of the skin.
Dermatoplasty
Skin grafting.
Dermis
The skin.
Detached retina
A condition where the retina becomes separated from the choroid.
Devitalize
To remove the nerve of a tooth or an organ.
Diabetes
Any of a group of diseases in which there is polyuria and/or an error of metabolism.
Diaclasia
The deliberate surgical fracture of a bone in order to reset a deformity.
Dialysis
The removal of harmful chemicals from the blood by the use of an artificial kidney.
Diaphoresis
Increased perspiration.
Diaphragm
A thin layer of tissue stretched across an opening.
Diaphysis
The central shaft of a large bone.
Diastasis
The forcible separation of parts that are normally joined.
Digit
A finger or toe.
Dilation
The action (whether by surgery or occurring naturally) of making something wider.
Diplegia
Paralysis of both sides of the body.
Diplopia
Double vision
Diptheria
An infectious disease which causes breathing difficulties.
Disarticulation
To separate the joints by injury or surgery.
Disc
A flat, circular, coin shaped structure.
Discography
Demonstration of a disc of a joint by the injection of a radio-opaque medium.
Dislocation
The abnormal displacement of a bone from a joint.
Distal
The extremity of a limb or organ furthest from the centre of the body.
Diverticulitis
A condition of inflammation of a diverticulum.
Diverticulosis
A condition of the colon on which the muscular wall gives way in places forming pouches which became filled with faecal material
Diverticulum
A pouch formed by diverticulosis.
Dorsal
Relating to the back part of the body.
Dorsal spine
Part of the spine where ribs join.
Dorsiflexion
The backward movement of joints.
Dorsum
The back or outer surface.
Down’s syndrome
A genetic disorder resulting in a flat facial look and some mental handicap.
Duodenal
Relating to the duodenum.
Duodenitis
Inflammation of the duodenum.
Duodenum
The first 20 to 25 cm of the small intestine.
Dura mater
The outermost membrane covering the brain.
Dysarthria
Slurred speech.
Dysphasia
Partial inability to speak.
Dyspnoea
Difficulty in breathing.
Dystocia
Difficult childbirth.
Dystrophy
The deterioration or degeneration of an organ or body tissues.
Dysuria
Pain during urination.
E
Eburnation
The final result of osteoarthritis, when the cartilage at the articulating surface of a bone is totally worn down.
Ecchymosis
An extravasation of blood.
Eclampsia
A toxic condition (to which pregnant women are particularly susceptible) characterised by high blood pressure and convulsions.
Ecdysis
The shedding of skin.
Eczma
A type of inflammation of the skin.
Edentulous
No teeth.
Effusion
The escape of fluid (eg. pus, blood, etc) into a body cavity.
Electrocardiogram
A tracing of the electric currents that initiate the heart beat and which is used to diagnose possible heart disorders.
Electro-encephalogram
A graph derived from a recording of brain activity and used in the diagnosis of epilepsy.
Embolism
The obstruction of a blood vessel by an embolus.
Embolus
Material (such as a blood clot or an air bubble) which is carried by the blood stream.
Embrasure
The gaps existing between neighbouring teeth.
Embryo
The human product of conception up to the first eight weeks of intrauterine life. The term fetus is used after that.
Eminence
A projection (usually describing that on a bone).
Emphysema
(1) The collection of air in certain parts of the body where it is not usually present.
(2) A condition in which the lungs become grossly enlarged due to retention of air.
Enarthrosis
A joint (such as the hip or shoulder) which operates by way of a ball and socket.
Endocrine
An internal secretion.
Endometrium
The lining of the womb.
Endoscope
An instrument for examining the interior of a hollow organ.
Enema
An injection of fluid into the rectum for cleaning, healing, sedative, diagnostic or nutritive purposes.
Enophthalmos
The recession of the eyeball into the cavity of the orbit.
Enteritis
Inflammation of the mucous membrane of the intestine.
Enterocentesis
The removal of an undue quantity of fluid from the stomach (or intestine) by use of a hollow needle.
Enucleate
To remove an eye.
Enuresis
Bed wetting.
Enzyme
A protein which will catalyse a biochemical reaction.
Epicondyle
A proturbance above a condyle at the end of a bone which articulates with another bone.
Epicondylitis
Inflammation of the epicondyle of the humerus or of the area immediately surrounding it.
Epicranius
The scalp muscle.
Epidermis
The outer protective layer of the skin.
Epidural
Relating to the outermost membrane covering the spinal cord.
Epigastric
Relating to the epigastrium.
Epigastrium
The upper part of the abdomen between the navel and the breast.
Epilepsy
An affliction of the nervous system characterised by fits.
Epiphysis
The growing part of a bone.
Epistaxis
Nose bleed.
Epithelial
Relating to or composed of epithelium.
Epithelium
A closely packed sheet of cells arranged in one or more layers, the component cells of which usually adhere to each other along their edges and surfaces.
Erb’s Palsy
Birth injury to the brachial plexus.
Erythema
Superficial redness of skin in patches.
Erythrocyte
Red blood cell.
Eschar
A dry scab.
Esophagos
Oesophagos.
Ethmoid bone
A sievelike bone lying in front of the sphenoid bone which forms part of the orbit and the nasal cavity.
Eutocia
Normal labour and childbirth without complications.
Eversion
The bending outwards of a joint.
Exacerbation
Increase in severity of a disease or in the violence of symptoms.
Excise
To cut tissue away surgically.
Exploratory operation
An operation to investigate and decide upon the cause of symptoms.
Exsanguinated
Partial blood loss to a dangerous degree.
Extension
The straightening out of a joint.
Extensor
To stretch out.
Extradural
Situated on the outside of the dura mater.
Extra-ocular
Situated on the outside of the eyeball.
Extravasation
The act of forcing a fluid out of, or allowing it to escape from, its proper duct or vessel.
Exudate
Any substance which has oozed through pores (eg sweat).
F
Facet
The surface on a bone which is small and flat.
Faecal
Relating to faeces.
Faeces
Bodily waste derived from ingested food and discharged through the anus.
Fallopian tubes
A pair of slender tubes through which ova pass from the ovaries to the uterus.
Fauces
Structures at the back of the throat.
Femur
Thighbone.
Femoral
Relating to the thigh.
Fetus
A human embryo from the second month of pregnancy until birth.
Fibrosis
Thickening of tissue.
Fibula
The outer and thinner of the two bones between the knee and the ankle.
Fistula
An abnormal opening between two hollow organs or a hollow organ and skin.
Flexion
The bending of a joint.
Flexor
The bending movement of a joint.
Foramen Magnor
A large opening at the base of the skull through which the spinal cord passes.
Fossa
A hollow area.
Fracture
A broken bone.
Frigidity
Lack of warmth of feeling.
Frontal
Relating or belonging to the forehead.
Frontal bone
An unimpaired cranial bone forming the forehead and the greater part of the orbital roof, and lying in front of the parietals.
Fusion
The joining together of two bones.
G
Gall-bladder
A pear shaped sac on the inferior surface of the right lobe of the liver in which bile is stored.
Gall-stone
A solid mass which may form in the gall-bladder.
Ganglion
A group of nerve cells with a common function, especially applied to a collection outside the central nervous system.
Gangrene
Necrosis of tissue due to cutting off the blood supply.
Gastrectomy
The surgical removal of the whole or part of the stomach.
Gastric
Relating or belonging to the stomach.
Gastritis
Inflammation of the gastric mucous membrane.
Gastro-enteritis
Inflammation of the mucous coat of the stomach and intestines as a result of Salmonella infection.
Gastro-intestinal
Relating or belonging to the stomach and the intestine.
Gastrotomy
The surgical opening of the stomach.
Gene
The part of a chromosome which is inherited and in turn passes on characteristics or traits.
Genetic
Inherited through genes.
Genioplasty
Plastic surgery to build up the cheek bone.
Genital
Relating or belonging to the reproduction organs.
Genu
The knee.
Gibbus
An angular and sharp backward curvature of the spine usually the result of a disease or tumour.
Gingivitis
Inflammation of the gum
Ginglymus
A hinge joint.
Gland
An organ which produces chemical substances.
Glandular fever
A viral infection.
Glaucoma
A disease of the eye in which increased pressure in the eyeballs causes damage.
Glenoid cavity
A socket located on the upper outer portion of the shoulder blade.
Glossopharyngeal nerve
The 9th cranial nerve which controls the muscles of the back portion of the roof of the mouth.
Glucose
A type of sugar which circulates naturally in the blood stream.
Gluteal
Relating to the buttock.
Glutenus maximus
A large muscle arising from the ileum and the sacrum.
Gonad
The organ in which reproductive cells are formed.
Granulation
The formation of small rounded masses of tissue.
Greenstick fracture
Partial splintering of a bone.
Groin
The depression that marks the junction of the lower part of the anterior abdominal wall and the thigh.
Guarding
A reflex muscle spasm caused by application of pressure
Guillain-barré syndrome
Acute infective polyneuritis.
Gullet
Oesphagus
Gum
Fleshy tissue covering the jaw bones around the base of the teeth
Gustatory
Relating to taste organs.
Gut
Alimentary Canal.
Gynaecological
Relating or belonging to gynaecology.
Gynaecologist
A doctor who specialises in the diagnosis and treatment of diseases peculiar to women.
Gynaecology
The study of disease in women.
H
Haemarthrosis
The swelling and pain resulting from bleeding into a joint.
Haematoma
A collection of blood forming a swelling.
Haemoglobin
A protein which is present in the red blood cells and which carries oxygen
Haemopneumothorax
An accumulation of blood and gas in the pleural cavity.
Haemoptysis
Coughing blood
Haemorrhage
The escape of blood from any part of the vascular system (ie bleeding).
Haemothorax
The escape of blood into the pleural cavity.
Halitosis
Bad breath.
Hallux
Great (big) toe.
Hamate bone
The medial bone in the distal row of carpal bones.
Hamstring
A tendon at the back of the knee.
Hemiparesis
Partial paralysis of one side of the body.
Hemiplegia
Paralysis of one side of the body.
Hepatiscostomy
The making of a surgical opening in the bile duct.
Hereditary
Transmitted from one generation to another.
Hepatitis
Inflammation of the liver. The most common causes are alcohol abuse or infection by one of 5 different viruses (A, B, C, D & E).
Hernia
The protrusion of an internal organ through a defect in the wall of the anatomical cavity in which it normally lies.
Herniation
The process of formation of a hernia.
Hernioplasty
The surgical repair of a hernia.
Herpes
A type of inflammatory disease of the skin or mucous membrane.
Hiatus
An opening.
Histamine
A type of amine
Histogenesis
Tissue formation.
Histology
The study of the structure of tissues by means of microscopy.
Hodgkins’s disease
A malignant disease characterised by enlargement of the lymph glands.
Homeostasis
The system whereby body functions (temperature, blood pressure, etc) remain in equilibrium whatever the outside environment.
Homoplasty
The repair of damaged tissue by grafting on similar tissues from another of the same species.
which it has some specific effect.
Humerus
The longest and largest bone of the arm.
Hyalitis
A form of inflammation of the eye.
Hypercarbia
Excess carbon dioxide.
Hydramnios
Excessive amniotic fluid.
Hydrocephalus
Swelling of the brain due to the accumulation of excess fluid.
Hydrogen
The lightest of the chemical elements, gaseous, colourless, odour-less and tasteless.
Hyoid bone
A V-shaped bone situated at the base of the tongue.
Hyperacusis
Excessive sensitivity to sight, sound, taste and smell.
Hyperaemia
Excess blood in a particular part of the body.
Hyperaesthesia
Excessive sensitivity to sound, taste, smell and feeling.
Hypercarbia
Excess carbon dioxide
Hyperextension
Abnormal movement of a limb beyond its limit.
Hypertension
High blood pressure.
Hypertrophy
Enlargement of cells generating an increase in the size of an organ or tissue.
Hyperventilation
Abnormally fast or deep breathing.
Hypoglossal nerve
The 12th and last cranial nerve which supplies the muscles of the tongue.
Hypoplasia
The failure of tissue to develop fully.
Hypothalamus
The neural control centre at the base of the brain concerned with hunger, thirst, sobriety and other autonomic functions.
Hypothyroidism
An under active thyroid.
Hypotropia
Squint.
Hypoxaemia
Lack of oxygen in the blood.
Hypoxia
A supply of oxygen to the tissues which is inadequate to maintain normal tissue respiration.
Hysterectomy
An operation to remove the uterus.
I
Ileotomy
Surgical incision of the ileum.
Ileum
The part of the alimentary canal between the jejunum and the caecum.
Iliac
Relating to the ilium.
Iliac fossa
The hollow area which can be felt on the surface of the body at each of the two lower corners of the abdomen.
Ilium
The hip bone.
Immune system
The body’s defence against foreign substances, eg bacteria, viruses and parasites.
Immunoglobin
A particular type of protein.
Incisors
The four front teeth in each jaw.
Incontinence
The lack of voluntary control over the discharge of faeces or urine.
Incus
A bone situated in the middle ear.
Induration
Excessive toughening of an organ or tissue.
Infarction
Death of the whole or part of organ caused by the obstruction of blood supply.
Inferior
Lower.
Infertility
Inability to produce children.
Inflammation
The reaction of living tissue in response to injury or infection characterised by heat, redness, swelling and pain.
Infra-orbital
Situated below the level of the floor of the orbit.
Inguinal
Of the groin.
Innominate bone
The hip bone.
Inoculate
To introduce into the body the bacteria which causes a disease in order to induce immunity from it.
Insomnia
Inability to sleep.
Insulin
A protein hormone secreted by the pancreas.
Intercostal
Situated between ribs.
Internal rotation
Rotating a limb inwards.
Interstitial
Occurring in the space between organs.
Intervertebral
Between two adjacent vertebrae.
Intestine
The part of the alimentary canal that extends from the stomach to the anus.
Intracranial
Inside the skull.
Intramuscular
Occurring within the substance of a muscle.
Intraoccular
Within the eye.
Intrauterine
Inside the womb.
Intravenous
Within or introduced into a vein.
Intravenous injection
An injection into the vein.
Introitus
An aperture.
Iridoplegia
Paralysis of the iris in the eye.
Iris
A thin muscular diaphragm that controls the size of the pupil of the eye.
Iritis
Inflammation of the iris.
Iritomy
Surgical incision of the iris.
Iron
A metal which is a necessary ingredient of blood.
Ischaemia
Deficiency of blood in a part of the body.
Ischium
One of the three sections of the hip bone.
Isometric
Having equal dimension.
J
Jaundice
A yellowing of the skin through the accumulation of bile products in the blood.
Jejunum
The part of the small intestine extending from the end of the duodenum to the ileum.
Jugular vein
The chief vein of the head and neck which carries blood from the head to the heart.
Juxta-articular
In close proximity to a joint.
K
Keloid
An overgrowth of fibrous tissue usually on the site of a scar.
Keratectomy
An operation to remove a superficial layer of the cornea.
Keratitis
Inflammation of the cornea.
Keratoplasty
Corneal graft.
Ketoacidosis
Acidosis caused by fat breaking down.
Kidney
One of two organs to the right and left of the lumbar region which filter waste products from the blood which are then excreted as urine.
Kirschner wire
Wire used in traction of the skeleton.
Knuckle
A prominence produced by the head of any of the metacarpal bones.
Kyphosis
Hunch-back.
L
Labial
Relating to the lips (either of the mouth or the vulva).
Labioplasty
Surgical repair to the lips (either of the mouth or the vulva).
Labyrinth
An interconnecting system of cavities in the inner ear.
Labyrinthitis
Inflammation of the ear.
Laceration
A tear or cut.
Lachrymal
Relating to the production of tears.
Lacrimal bone
A small bone forming the anterior part of the medial wall of the orbit and part of the side wall of the nose.
Laminectomy
An operation to relieve the symptoms of a ruptured intervertebral disc (a slipped disc)
Laparoscope
A type of trocar provided with an illuminating mechanism with which the abdomen can be examined.
Laparoscopy
A technique to inspect the pelvic organs by expanding the abdominal cavity with gas, and then inserting a laparoscope.
Laparotomy
Incision into the abdomen to explore for the possibility of some disease.
Large intestine
The part of the alimentary canal consisting of the cecum, colon and rectum.
Laryngeal
Relating to the larynx.
Laryngectomy
An operation to remove part of the larynx.
Larynx
The organ situated at the upper end of the trachea and concerned with the production of the voice.
Lateral
To the side.
Laxative
An agent which stimulates the evacuation of the bowel.
Lesion
A localised area of tissue damage.
Ligament
Flexible fibrous tissue that holds together, supports and protects two bones at a joint thereby preventing abnormal movement.
Lipoma
A swelling mainly comprised of fat.
Liver
A gland situated on the right side of the upper abdomen which secretes bile and detoxifies certain poisons.
Lordosis
Forward curvature of the spine (the opposite of Kyphosis).
Lumbago
Pain in the lower part of the back.
Lumbar
Relating to the lower back.
Lumen
A cavity in a tubular organ.
Lunate bone
A bone of the wrist .
Lungs
The two organs enclosed by the ribs which oxygenate blood and remove carbon dioxide.
Lymph
Fluid that flows in the lymphatic channels.
Lymphatic channels
An extensive network of vessels that carry interstitial fluid to the blood.
Lymphodermia
Any morbid condition affecting the lymph glands.
Lymphoid
Resembling a lymph.
M
McMurray’s test
A test to diagnose tearing of the knee cartilage.
Macrocytosis
Abnormally large red blood cells.
Macula
A circumscribed spot in any tissue.
Malacia
The softening of an organ or tissue caused by disease.
Malar
Relating to the cheek or cheek bone
Malignant
Threatening life or tending to cause death (the opposite of benign).
Malingerer
An individual who feigns disease or illness.
Malleolus
A rounded bony prominence on either side of the ankle joint.
Malocclusion
The lack of occlusion between the teeth of opposite jaws when the jaws are at rest.
Malunion
The failure of bones properly to align after fracture.
Mammary
Relating to the mammary gland.
Mammary gland
The breast.
Mammoplasty
An operation to reduce the size of the female breasts.
Mandible
The lower jaw.
Marrow
The fatty substance that fills the cavities of bones.
Mastication
Chewing food.
Maxilla
Either of the pair of bones constituting the upper jaw.
Medial
Middle.
Median
Placed in the middle.
Median nerve
One of the nerves of the forearm and hand.
Medulla
The innermost part of an organ.
Medulla oblongata
The lower portion of the brain containing the control centres of the heart and lungs.
Melaena
The presence of blood in faeces.
Melanoma
A tumour consisting of darkly pigmented cells.
Membrane
A thin layer of tissue which covers a surface.
Meningitis
Inflammation of the membranes of the brain or spinal cord.
Meniscetomy
Removal of cartilage in the knee.
Meniscus
A crescent shaped cartilage in the wrist and knee joints.
Mesothelioma
A tumour of the lining of the lung usually the result of exposure to asbestos.
Metabolic acidosis
Low pH due to the presence of lactic acid.
Metabolism
The chemical processes that occur in living organisms
Metacarpal bones
Any of the bones of the palm of the hand.
Metaphysis
That part of the bone which is growing between the ends and the shaft.
Metastasis
The transfer of disease from its primary site to other parts of the body.
Metatarsal bones
Five long bones forming the skeleton of the anterior part of the foot.
Metatarsalgia
Aching pain in the region of the metatarsal bones.
Metrorrhexis
Rupture of the womb.
Micro-organism
An organism of microscopic size.
Molar teeth
The broad topped teeth used for grinding which are situated at the back of the mouth.
Monoplegia
Paralysis of one limb.
Morbid
Relating to disease.
Morton’s neuralgia
A condition associated with falling of the metatarsal arch.
Motile
Capable of moving independently and spontaneously.
Motor neurones
The nerves which stimulate movement.
Mucous membrane
A membrane that lines a body cavity, which is open to the external environment and which releases mucus.
Mucus
A slimy protective substance released by a membrane.
Muscle
A bundle of bony slender cells that are able to contract and hence produce movement.
Myasthenia
Weakness of muscles.
Myasthenia gravis
An autoimmune disease which causes weakness in muscles.
Myectomy
An operation to remove part of a muscle.
Myelitis
Inflammation of bone marrow.
Myelogram
An x-ray of the spinal canal after the injection of a radio-opaque contrast medium into the subarachnoid space.
Myocardial
Relating to the myocardium.
Myocardial infarction
Heart attack.
Myocardium
The middle of the three layers which form the walls of the heart.
Myoclonus
A brief twitching muscular spasm.
Myodynia
Muscle pain.
Myoglobin
A protein which is present in blood and gives it its red colour.
Myositis
Inflammation of muscles.
Myotasis
Muscular extension (stretching).
Myotomy
An operation to divide a muscle.
N
Narcotic
A drug that induces sleep.
Nares
Nostrils.
Nasal
Relating to the nose.
Nasal cavity
The area behind the nostrils
Nasal septum
The dividing partition that separates the nostrils.
Nausea
A feeling of sickness with a desire to vomit.
Navel
The scar in the centre of the abdomen where the umbilical cord was attached.
Navicular bone
A bone situated on the side of the foot.
Necrophilism
Unnatural pleasure in corpses and in being in their presence.
Necrosis
Death of tissue.
Neoplasm
Tumour.
Nephritis
Inflammation of the kidneys.
Nephrotomy
An operation into the kidney.
Nerve
Fibres along which impulses pass from one part of the body to another.
Nervous system
The sensory and control mechanism of the body consisting of a network of nerve cells.
Neural
Relating to nerves or the nervous system.
Neuralgia
Pain along the course of one or more nerves.
Neurasthenia
Irritability, headache, dizziness, anxiety, impatience.
Neuritis
Inflammation of a nerve, with pain, tenderness and loss of function.
Neurectomy
An operation to remove a nerve.
Neuro-anastomosis
The surgical formation of an anastomosis between nerves.
Neurocranium
The part of the skull containing the brain.
Neurology
The section of medicine that deals with the study and treatment of diseases of the nervous system.
Neuroma
Abenign tumour.
Neuropathy
Any disorder of peripheral nerves (usually causing numbness and weakness).
Neuropraxia
The temporary failure or impairment of functions due to a disorder of the nervous system.
Neuroretinitis
Inflammation of the optic nerve and retina.
Neurosis
A pathological abnormal emotional state characterised by an inability to deal efficiently with anxiety.
Neurosurgery
Surgery to treat disease and disorders of the brain and spinal cord.
Nocturia
The need to arise from sleep in order to urinate
Node
A small knot of tissue.
Nucleus pulposus
The soft pulpy centre of an intervertebral disc.
Nutation
Nodding the head.
Nystagmus
Involuntary fluttering of the eyes.
O
Obesity
An excessive accumulation of fat in the body.
Obstetrics
The branch of medicine dealing with the care of women during pregnancy and childbirth.
Occipital bone
The bone at the posterior and inferior part of the skull and containing the foramen magnum.
Occiput
The back of skull.
Occupational therapy
A procedure whereby a person is given something practical to do to facilitate recovery from illness.
Ocular
Relating to the eye
Oedema
Swelling due to accumulation of fluid in tissue.
Oesophagitis
Inflammation of the gullet.
Oesophagus
The part of the alimentary canal between the pharynx and the stomach (gullet).
Olfaction
The sense of smell.
Olfactory nerves
The nerves of smell.
Omphalic
Relating to the umbilicus.
Onych
Relating to the nails.
Onychalgia
A painful condition affecting the nails.
Oophorectomy
An operation to remove an ovary.
Open fracture
When a broken bone pierces the skin.
Ophthamectomy
The surgical removal of the eye.
Ophthalmic nerve
The nerve supplying the eyeball and eyelids.
Ophthalmitis
Inflammation of the eye.
Ophthalmologist
A specialist in the investigation and treatment of eye diseases and defects.
Ophthalmorrhexis
The bursting open of the eye ball.
Optic nerve
The nerve of sight.
Optometrist
A person who practises optometry.
Optometry
The assessment of visual acuity and the correction of visual defects by the fitting of spectacles.
Orbit
The large bony cavity which contains the eyeball.
Orchidectomy
The surgical removal of the testis.
Orchitis
Inflammation affecting the testis.
Organ
A separate and distinct functional unit of the body.
Organic
Relating to a body organ.
Organism
Anything resembling a living creature in structure and behaviour.
Orthodontist
A dentist who specialises in correcting the mis-alignment of teeth.
Orthopaedics
Relating to the diseases and disorders that cause damage to bones and joints.
Orthopnoea
Shortness of breath on lying flat.
Os calcis
Heel bone.
Ossification
The process by which bone is formed.
Ostectomy
The surgical removal of a bone.
Osteitis
Bone inflammation.
Osteitis Deformans
A chronic disease of the bones causing inflammation and deformity
Osteoarthritis
A degenerative disease of a joint caused by wear and tear
Osteoarthrotomy
An operation to excise the bone adjoining a joint.
Osteochondritis
Inflammation of a bone and its adjacent cartilage.
Osteomyelitis
Inflammation of the interior of a bone.
Osteopath
A person who practices osteopathy.
Osteopathy
A method of treating disease by manipulation.
Osteoporosis
Loss of bony tissue causing bones to become softer and liable to bend or fracture.
Osteorrhaphy
An operation to suture or wire together the fragments of a fractured bone.
Osteotomy
An operation to cut through a bone.
Otology
The branch of medicine which deals with the ear.
Otitis
Inflammation of the ear.
Otosclerosis
A thickening of the bone of the middle and internal ear producing deafness.
Otoplasty
Surgical repair of the ear.
Ova
The plural of ovum.
Ovary
The female gonad.
Ovulation
The development and discharge of an ovum.
Ovum
A female egg.
P
Paget’s disease
Osteitis deformans.
Palate
The roof of the mouth.
Palmar
The palm of the hand.
Palmarflexion
The bending of the wrist towards the arm.
Palpable
Enlarged.
Palpate
To examine or explore by touch.
Palpitation
Rapid heart action.
Palsy
Paralysis.
Pancreas
A large gland lying on the abdominal wall which secretes insulin.
Pancreatitis
Inflammation of the pancreas.
Papanicolaou’s stain
A method of staining smears of various body secretions to detect the presence of a or smear malignant process.
Paraesthesia
Pins and needles.
Paralysis
Inability to move parts of the body.
Paranoia
A mental disorder characterized by delusions of persecution.
Paraparesis
Paralysis affecting the lower extremities.
Parathesis
Heightened sensitivity of sensation.
Paraplegia
Paralysis of both legs.
Parasympathetic
The part of the nervous system which acts in opposition to the sympathetic nervous system and which slows the heartbeat.
Paravertebral
Situated alongside of the spinal column.
Paresis
Partial paralysis.
Parietal
Relating to the walls of a bodily cavity .
Parietal bone
One of the bones forming the top of the skull.
Parkinson’s disease
A progressive chronic disorder of the nervous system characterised by impaired muscular co-ordination.
Parosmia
Experience of a smell which is not there.
Paroxysm
A sudden attack of a disease .
Patch testing
The application of a number of substances to the body to establish which are responsible for an allergy.
Patella
Knee cap.
Patellectomy
An operation to remove the patella.
Patellofemoral
Relating to the patella and the femur.
Pathogenic
Disease producing.
Pathological
Caused by disease
Pathology
The study of disease.
Pelvic floor
The partition, consisting of muscles, between the pelvis and the perineum.
Pelvimetry
The measurement of the shape and dimensions of the pelvis.
Pelvis
The basin-shaped ring of bone at the lower end of the trunk.
Pemphigus
An autoimmune disorder of the skin.
Penis
The male organ of copulation.
Percussion
The art of striking the chest or abdominal wall in order to produce sound vibrations from which the nature of the underlying structures can be deduced.
Periarthritis
Inflammation of tissue around a joint.
Pericarditis
Inflammation of the pericardium.
Pericardium
The membrane which encloses the heart.
Peridentitis
Periodontitis.
Perineum
The area between the anus and the genital organs.
Periodontal
Situated around a tooth
Periodontitis
Inflammation of the periodontal membrane.
Periostitis
Inflammation of the membrane on the surface of a bone.
Peripheral
Near the surface of an organ.
Peritoneoscope
A surgical instrument for inspection of the contents of the abdomen through an incision in the abdominal wall.
Peritoneum
The membrane which lines the abdominal cavity.
Peritonitis
Inflammation of the peritoneum caused by bacterial infection.
Pertussis
Whooping cough.
Petechia
A small spot (usually red or purple) caused by extravasation of blood.
Petit mal
A form of epileptic fit characterized by abrupt loss of consciousness without convulsion and with rapid recovery.
Phagocytes
Cells which have the ability to destroy bacteria.
Phalanges
The main bones of the digits of both the hand and foot.
Pharynx
The part of the alimentary canal between the mouth and the oesophagus
Phenylketonuria
An hereditary disorder that produces brain damage resulting in severe mental retardation.
Phlebitis
Inflammation of a vein.
Phlebotomy
Venesection.
Phobia
Fear.
Photosensitivity
Abnormal or excessive sensitivity to light.
Phrenic arteries
Branches of the abdominal aorta.
Phrenic nerve
A paired nerve which supplies the diaphragm, pericardium and pleura.
Physiology
The study of how the normal body works.
Physiotherapy
Treatment to restore full movement of a limb by massage, manipulation and exercise.
Pia mater
The innermost membrane covering the brain.
Pisiform
A bone in the wrist.
Pituitary
A gland situated at the base of the brain which secretes hormones affecting skeletal growth.
Placenta
A vascular organ formed in the uterus during pregnancy and which provides oxygen and nutients to the fetus.
Plantar
Relating to the sole of the foot.
Plantar flexion
Flexing the foot.
Plantaris
The muscle in the sole of the foot.
Plaques
Raised patches of skin.
Plasma
The fluid portion of the blood in which the blood corpuscles are suspended.
Platelet
A very small cell in the blood.
Pleura
The membrane enveloping the lungs.
Pleural cavity
The space between the covering of the lungs and the inner surface of the chest wall.
Pleurisy
Inflammation of the pleura.
Plexus
A network of nerves or blood vessels.
Pneumocardial
Relating to the lungs and the heart.
Pneumocentesis
Lung puncture in order to aspirate the contents.
Pneumoconiosis
Lung disease caused by inhalation of dust.
Pneumonia
Inflammation of the spongy tissue of the lung in which the air sacs become filled with fluid making breathing difficult.
Pneumonitis
Inflammation of the lung.
Pneumopericarditis
Pericarditis associated with the presence of air or gas in the pericardium
Pneumothorax
Collection of air in the pleural cavity.
Podiatrist
Achiropodist.
Poliomyelitis
An acute inflammation of the spinal cord due to a virus infection.
Pollux
Thumb.
Polycystic
Composed of or containing many cysts.
Polycythaemia
An excess of red cells in the blood.
Polyneuritis
Inflammation of several nerves at the same time.
Polypus
Tumour attached by a stalk to a surface.
Polyuria
The need to urinate frequently.
Pons
Abridge.
Popliteal
Relating to or near to the part of the leg behind the knee.
Posterior
The back part.
Postero-anterior
From the back to the front.
Postnatal
Relating or belonging to the period immediately following birth.
Postpartum
Following childbirth.
Potassium
A soft white metal related to sodium.
Pott’s disease
Tuberculosis of the spine.
Pott’s fracture
Fracture of the lower end of the fibula, with outward displacement of the ankle and foot.
Pre-eclampsia
A condition arising in pregnancy and characterised by the presence of hypertension, oedema, and/or proteinuria.
Premolar teeth
The teeth which are situated between the molar and canine teeth. There are two on each side of both jaws.
Prenatal
Preceding birth.
Pressure sore
Decubitus ulcer.
Priapism
Persistant erection of the penis.
Proctitis
Inflammation of the rectum.
Proctologist
A doctor who makes a special study of diseases of the anus and rectum.
Prognosis
A doctor’s assessment of how long it will take for a patient to recover.
Progressive
Advancing in severity.
Prolapse
A slipping down or displacement of an organ.
Pronation
The rotational movement of the forearm so that the palm faces downwards.
Proprietary
A drug made and labelled by a particular drug company.
Prostate
A gland (confined to the male) which surrounds the neck of the bladder.
Prostatectomy
An operation to remove the prostate by surgery.
Prostatitis
An inflammatory condition of the prostate.
Prosthesis
An artificial part.
Protein
A type of chemical compound which is present in all living organisms.
Proteinuria
The presence of protein in the urine.
Prothrombin
A constituent of plasma that clots the blood.
Proximal
Nearer to the centre of the body.
Psychiatrist
A doctor who specialises in the diagnosis and treatment of mental disorders.
Psycho-analysis
A procedure developed by Freud for the investigation of unconscious mental processes.
Psycho-analyst
A person who practises psycho-analysis.
Psychologist
A person who practices psychology
Psychology
The study of human behaviour by objective testing.
Psychosis
A term applied generally to any kind of mental disorder.
Ptosis
The prolapse or dropping of an organ.
Pubis
The anterior portion of the hip bone.
Pulmonary
Of the lung.
Pulse
A regular contraction and expansion of an artery at each beat of the heart.
Pupil
The dark circular aperture at the centre of the iris of the eye through which light passes.
Purgative
Laxative.
Purpura
A blood disease which causes a red rash.
Pus
A fluid produced by inflammation of tissue consisting of liquified cells.
Pyelonephritis
Inflammation of the kidneys.
Pyorrhoea
A discharge of pus.
Pyrexia
Fever.
Pyrophobia
Morbid fear of fire.
Pyrosis
Heartburn.
R
Rabies
A disease of warm-blooded animals particularly foxes, wolves, bats and dogs which causes fear of water.
Rachialgia
Any painful infection of the spinal column.
Radial nerve
The largest branch of the posterior cord of the brachial plexus.
Radiculitis
Inflammation affecting the root of a spinal nerve.
Radiculopathy
Any diseased condition of the roots of nerves.
Radio-opaque
Not permitting x-rays to pass through.
Radius
The bone to the side of the forearm.
Raynaud’s Disease
Vibration white finger.
Rebound
Pain on removal of pressure
Rectal
Relating or belonging to the rectum.
Rectocele
Protrusion of the wall of the rectum into the perineum or vagina.
Rectum
The lower part of the alimentary canal between the colon and the anus.
Reduction
Bringing back to the normal position.
Reimplantation
The reinsertion in its original situation of an organ or part which has been removed.
Renal
Relating to the kidneys.
Resection
Any surgical removal of a portion of the body.
Respiration
The process by which a living organism takes in oxygen and gives out carbon dioxide.
Respiratory
Acidosis Low pH due to the presence of carbon dioxide.
Retardation
Backwardness.
Retina
The innermost coat of the eyeball.
Retinal
Relating to the retina.
Retinitis
Inflammation of the retina.
Retinopathy
Any diseased condition of the retina.
Retrenchment
A surgical procedure for the removal of redundant tissue.
Rheumatoid arthritis
A progressive inflammatory disease of joints.
Rheumatism
Any ache in joints
Rhinitis
Inflammation of the nasal mucous membrane.
Rhinoplasty
The correction by surgery of a deformity of the nose.
Rhizotomy
The cutting of a nerve root for the relief of pain.
Rickets
A disease in children caused by a deficiency of vitamins which results in the softening of bones.
Right homonymous hemianopia
Visual loss of the right field of vision.
Rigor mortis
Stiffening ensuing soon after death.
Rubella
German measles.
Rubeosis
Redness of the skin.
Rupture
Hernia
S
Sac
A pouch like part.
Sacral
Relating or belonging to the sacrum.
Sacrolumbar
Relating or belonging to the sacrum and the lumbar region.
Sacrum
A curved triangular bone in the lower part of the back.
Saline
Salt.
Salmonella
A type of bacteria.
Salpingectomy
The surgical removal of a fallopian tube.
Salpingitis
Inflammation of the fallopian tubes.
Saphenous vein
Superficial veins of the foot and leg.
Sarcoidosis
A disease which causes inflammation of organs eg skin, eyes, lungs.
Sarcoma
A malignant tumour of connective tissue.
Sartorius muscle
A long strap like muscle that aids flexion of the knee.
Scaphoid bone
A bone in the wrist.
Scapula
The shoulder blade.
Sciatica
Pain in the sciatic nerve down the back of the leg.
Sciatic nerve
The largest nerve in the body, running from the lower spine to the pelvis and down the back of each thigh.
Sclera
The outer, opaque fibrous coat of the eyeball.
Sclerosis
Hardening of a tissue due to inflammation.
Scoliosis
Abnormal lateral curvature of the spine.
Scrotum
A pouch of skin and subcutaneous tissue containing the testes, situated below the root of the penis.
Section
To cut or divide an organ by surgery.
Semen
Aseed.
Sepsis
Infection with pus forming micro-organisms.
Septicaemia
A type of infection in which the blood stream is invaded by bacteria.
Septum
A dividing partition between two tissues or cavities.
Sequestrectomy
An operation to remove dead bone.
Sequestrum
A portion of dead bone which has become detached from the healthy bone tissue.
Serology
A branch of medical science which is concerned with the study of blood serum.
Serum
A yellowish fluid that remains after whole blood or plasma has been allowed to clot.
Sign
What a doctor can see.
Silicosis
A form of lung disease, caused by inhalation of silicon dust.
Simple fracture
When a bone breaks cleanly in two.
Sinus
Any bodily cavity or hollow space.
Sinusitis
Inflammation of a sinus.
Small intestine
The part of the alimentary canal consisting of the duodenum, jejunum and ileum.
Sodium
A metallic element used in medicine.
Soleus muscle
A muscle of the calf.
Spasm
A sudden, powerful, involuntary contraction of a muscle.
Sperm
Semen.
Sphenoid bone
A bone forming the central part of the base of the skull.
Sphincter
Any muscle closing an orifice.
Spina bifida
A defect in the development of the spine in which the spinal cord protrudes through a gap in the backbone.
Spinal canal
A passage through the middle of the spinal colum that contains the spinal cord.
Spinal column
The backbone.
Spinal cord
A cord of nerve tissue within the spinal canal which together with the brain forms the nervous system.
Spirometer
Apparatus used to determine the capacity of the lungs.
Spleen
A gland situated near the stomach which filters bacteria from the blood.
Splenectomy
The surgical removal of the spleen.
Spondylitis
Inflammation of the joints of the back bone.
Spondylo-listhesis
The slipping forward of one vertebra onto another.
Spondylolysis
The breaking down of vertebrae.
Spondylosis
Osteoarthritis of the spine.
Sprain
Injury by sudden traction to the muscles or ligaments although not sufficient to cause a fracture.
Spur
A projecting portion of bone.
Stapes
One of the bones in the cavity of the ear which has a resemblance to a stirrup.
Staphylococcus
A type of bacteria.
Stenosis
The abnormal narrowing of an opening or passage.
Sternum
The breast bone.
Stethoscope
An instrument for listening to sounds within the body.
Stillbirth
The birth of a dead baby.
Stomach
The sac like part of the alimentary canal in which food is stored until it is digested.
Strain
To injure by overtaxing.
Streptococcus
A type of bacteria.
Stress incontinence
Incontinence caused by coughing, sneezing or laughing.
Stroke
A sudden seizure caused by the rupture of a blood vessel in the brain.
Subarachnoid space
The space between the arachnoid and the pia mater.
Subcutaneous
Beneath the skin.
Subdural haematoma
Bleeding under the skull which compresses the brain.
Subluxation
Partial dislocation of a joint, so that the bone ends are mis-aligned but still in contact.
Superficial
Near to the surface.
Supination
The outward rotation of the forearms, so that the palm lies upwards.
Supracondylar
Above a condyle.
Supraorbital
Situated above the orbit.
Suprapubic
Situated above the pubic arch.
Sural nerve
A branch of the popliteal nerve in the calf of the leg.
Suture
A surgical stitch.
Sympathetic
A part of the nervious system which acts in opposition to the parasympathetic nervous system and which accelerates the heartbeat.
Symphysis
The growing together of separate bones in a joint.
Symptoms
What the patient describes.
Syncope
A faint flow.
Syndesmosis
A fibrous joint in which the opposing surfaces are held together by a ligament.
Syndrome
A distinct group of symptoms or signs which, associated together, form a characteristic clinical picture.
Synostosis
The joining of bones by the ossification of the connecting tissues.
Synovectomy
The cutting away of part or all of a synovial membrane.
Synovia
A fluid secreted by the membrane lining a joint.
Synovial effusion
Extra fluid generated by a synovial membrane.
Synovitis
Inflammation of the membrane lining a joint.
T
Tachycardia
Abnormally rapid heart rate.
Talus
The ankle bone.
Tarsalgia
Aching pain in the sole of the foot.
Tarsus
Bones of the foot.
Tay-sachs disease
A disease of childhood in which there is a progressive degeneration of nerve cells throughout the whole nervous system and in the retina.
Temporal
Located in the region of the temple.
Temporal bone
One of a pair of bones lying at the base of the skull and housing the middle and inner ear.
Temporomandibular
Connecting the temporal bone and the mandible.
Tendinitis
Inflammation of a tendon.
Tendon
A band of fibrous tissue which attaches a muscle to a bone.
Tenoplasty
An operation to repair a damaged tendon.
Tenorrhaphy
An operation to unite the ends of a severed tendon.
Tenosynovitis
Inflammation of a tendon producing pain and swelling.
Tenotomy
The cutting of a tendon by surgery.
Tensor
A muscle that stretches or tightens some part of the body.
Testicle
The male gonad.
Testis
Testicle.
Tetanus
An infectious disease caused by organisms entering through an abrasion or wound of the skin.
Tetraplegia
Quadriplegia.
Thenar
Relating to the ball of the thumb.
Thoracic
Relating to the chest
Thoracotomy
An operation to incise the wall of the thorax.
Thorax
The chest.
Thrombophlebitis
Phlebitis following the formation of a blood clot.
Thrombosis
The presence of a thrombus which impedes blood flow.
Thrombus
A clot of co-agulated blood that forms within a blood vessel and remains at the site of the formation.
Thyroid
A gland at the base of the neck which releases hormones which control metabolism and body growth.
Tibia
The shin bone.
Tibial nerves
Nerves that constitute the main nerve supply of the leg and foot.
Tinnitus
Noise heard in the ear without external cause.
Tonsil
A mass of lymphoid tissue at the back of the throat.
Tonsillectomy
The surgical removal of a tonsil.
Torso
The body excluding the head, neck and limbs.
Torticollis
Spasm of the neck muscles, drawing the head to one side and twisting the neck.
Trabeculae
Bands of tissue which pass from the outer covering of an organ to the interior.
Trachea
The tube which carries air from the larynx to the bronchus (the windpipe).
Tracheostomy
An operation to open the windpipe so that air may obtain direct entrance into lower air passages.
Tracheotomy
A surgical incision into the wind pipe.
Traction
The drawing or pulling of a limb or the spine.
Transurethral
Passing through the urethra.
Trapezium
A bone in the wrist near the thumb.
Trapezius muscle
A large flat muscle located in the upper portion of the back.
Trauma
A bodily injury or wound.
Trendelenburg test
A test for function of the hip muscle.
Trephination
The surgical removal of a circular disc of bone or other tissue with a cylindrical saw.
Triceps
Three-headed.
Trigeminal nerve
The 5th cranial nerve which supplies the muscles of the mandibular and maxilla.
Triquetrum
A bone in the wrist.
Trismus
Inability to open the mouth due to chronic contractions of the muscles of the jaw.
Trocar
A surgical instrument used to puncture bodiliy cavities.
Trochanter
Either of the two bony prominences at the upper end of the femur.
Trochlear nerve
The 4th cranial nerve which supplies the muscles of the eye.
Trunk
Torso.
Tuberculosis
A bacterial disease which affects the lungs.
Tuberosity
A rounded protuberance on the surface or side of a bone.
Tumour
An abnormal swelling formed by a new growth of cells.
Turbinate
Shaped like an inverted cone.
Tympanic cavity
The middle ear.
Typhoid
A bacterial disease which causes a fever.
U
Ulcer
The disintegration of the surface of the skin resulting in an open sore.
Ulna
The inner bone of the forearm.
Ulnar nerve
One of the primary nerves in the arm.
Umbilical cord
A long flexible tube like structre which connects the fetus to the placenta.
Umbilicus
Navel.
Ungual
Relating to the nails.
Urea
A colourless crystalline substance which exists in blood and tissue fluids and which is produced by protein metabolism and excreted in urine.
Ureter
Tubes which take urine from the kidney to the bladder
Urethra
The canal through which the urine passes on its way from the bladder to the exterior.
Urethritis
Inflammation of the urethra.
Urinary tract
The vessels which pass urine from the kidney to the urethra via the bladder.
Urine
The fluid which is secreted by the kidneys and which is stored in the bladder and excreted through the urethra.
Urticaria
A skin rash caused by the sudden release of histamine
Uterus
A hollow, thick-walled, muscular organ lying within the pelvic cavity of the female and which houses the developing fetus.
V
Vaccination
The process or act of inoculating a person.
Vagina
The female genital canal.
Vaginitis
Inflammation of the vagina.
Vagus nerve
The 10th of the cranial nerves which supplies the heart, lungs and viscera.
Valgus
Turned away from the midline of the body.
Valgus deformity
Bow-legged.
Valvotomy
The surgical severing of a valve.
Varus
Turned inwards towards the midline of the body.
Vascular
Concerned with vessels that circulate fluids.
Vein
A vessel carrying oxygen depleted blood to the heart.
Venesection
A surgical incision into a vein.
Venography
Visualisation of veins by x-ray after injecting a radio-opaque contrast medium.
Venous
Relating to the blood circulating in the veins.
Ventral
Relating to the front part of the body.
Ventricle
A small cavity, chamber, or compartment.
Vertebra
A bony segment of the spinal column.
Viscera
Intestines.
Vertigo
Giddiness.
Virus
An organism smaller than a bacteria which is surrounded by a protein coat which causes disease.
Visceral
Concerned with the internal organs, including the heart, lungs, liver and stomach.
Visual acuity
Sharpness of vision.
Volar
The palm of the hand.
Volkmann’s contracture
Fixed deformity of the hand due to fibrosis of muscle following injury to blood supply.
Vomen
The thin bony part of the septum of the nose.
Vulva
The external genitals of human females.
W
Watershed infarcation
A stroke effecting the boundary between the parietal and occipital lobes of the brain.
Whiplash
A violent forward and backward movement of the head upon the neck.
Whitlow
Inflammation around a finger nail.
Windpipe
The trachea.
Womb
Uterus.
Wrist drop
Paralysis of the extensor muscles of the hand and digits.
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