Dictionary Terms 108-213 Flashcards
Chronic changes within a joint including deposition of periarticular new bone. Same as osteoarthritis
Degenerative joint disease (DJD)
Release of granules from a cell
Degranulation
Breakdown of healing at the site of a wound or suture
Dehiscence
Multiple extensions of a neurone to create a tree like structure. Has multiple synaptic inputs from other neurones
Dendrite
DNA. The chemical basis of genetic material of living cells
Deoxyribonucleic Acid
Inflammation of a ligament
Desmitis
Disease typified by abnormal thirst and urination
Diabetes insipidus (DI)
Disease typified by high blood glucose. Several forms. Requires dietary management and/or insulin injections. wound infections are more troublesome
Diabetes mellitus (DM)
Central shaft of long bone
Diaphysis
Joint comprising lubricating fluid, hyaline cartilage and synovial membrane/joint capsule
Diarthrosis
Space between teeth. In horses this refers to the area between the incisors and premolars
Diastema
Inflammation of vertebral disc
Discospondylitis (orthopaedics)
More distant from the axial skeleton
Distal
Loss of muscle mass due to lack of use. Technically this is a hypotrophy
Disuse atrophy
Long skull, Maxilla and premaxilla. Can be parrot mouthed or brachygnathic. Greyhounds are typical
Dolichocephalic
Towards the top of the animal.
Dorsal
Removal of one of more of the dorsal spinous processes and the vertebral arch to decompress the spinal cord in thoracic-lumbar regions
Dorsal laminectomy (orthopaedics)
Lying upside down
Dorsal recumbency
Bending of spine in the median plane to for, a U-shape
Dorsiflexion
An abnormality in development, size or shape of a cell
Dysplasia
Protein in connective tissues making fibres flexible
Elastin
Range of frequencies of radiation from radio waves (lowest) through microwaves, infrared, visible, ultraviolet, and X-rays to gamma rays (highest)
Electromagnetic spectrum
Examination of the electrical activity of muscles; used for diagnostic purposes
Electromyography
Separation of components of a mixture using an applied electrical field as this causes differing migration of components
Electrophoresis
Electrical surgical procedure to remove tissue or to seal blood vessels e.g. Electrocautery
Electrosurgery
Hormone imbalance which leads to disease
Endocrinology
Examination of internal cavity or organ using an endoscope
Endoscopy
Inflammation of small intestine
Enteritis
Muscles dorsal to spinal column. Creates dorsiflexion
Epaxial (muscles)
Same as adrenaline
Epinephrine
End of a long bone
Epiphysis
Condition similar to rickets affecting ends of long bones. Leads to enlarged, painful joints
Epiphysitis
A chronic progressive disease that effects young horses. It is related to vitamin E deficiency and is characterised by gait abnormalities
Equine Degenerative Myeloencephalopathy
A collection of biochemical faults in horses typified by raised plasma glucose, hyoerinsulinaemia and laminitis. May be the forerunner of PPID
Equine Metabolic Syndrome (EMS)
Red blood cells. No nucleus once fully mature, produced by the red marrow. Lifetime approx. 90-120 days
Erythrocytes
Full thickness skin lesion formed in the healing process. Healing is prevented. Requires surgery.
Eschar
Cause of a disease
Etiology
Normal growth
Euplasia
Normal tissue mass
Eutrophy
Muscle diseases arising as a result of exertion. These include Azoturia and endurance related myopathies
Exertional Rhabdomyolysis
The bending of a joint to increase the angle between the bones which make the joint
Extension
Small sesamoid bones at the caudodistal part of the femur. Attachment points for gastrocnemius
Fabellae
Sheets of fibrous tissue that sheath the muscles and define their shape
Fascia
Frequent, small localised muscle contractions
Fasciculations
Mammalian skeletal muscle fibres (type 2)
Fast twitch
Joint between long pastern and cannon bones
Fetlock
An insoluble protein that forms nucleus of clot
Fibrin
Clotting factor in the blood. The enzyme thrombin converts it into its active form fibrin
Fibrinogen
An immature fibrocyte
Fibroblast
Form of cartilage with high collagen content. Used as a shock absorber e.g. Intervertebral discs
Fibrocartilage
Malignant tumour of connective tissue cells
Fibrosarcoma
The formation of tough connective tissue, scarring
Fibrosis
Infected tracts forming around the withers
Fistulous withers
The bending of a joint to reduce the angle between the bones which make the joint
Flexion
Controls maturation of the ovum and ovulation
Follicle stimulating hormone (FSH)
Natural hole in a bone
Foramen
Common name for laminitis
Founder
Triangular thickened area in the middle of the sole of the hoof. Shock absorber and blood pumping actions
Frog
Sudden and intense onset, coming to a peak
Fulminant
Dark line, vertically orientated, that forms on the outside of the upper lateral incisors. Length and appearance of this line may be useful in determining the age of a horse
Galvayne’s groove
Reproductive cells having a single set of chromosomes
Gametes
Decay and tissue death usually due to loss of blood supply and bacterial invasion of tissue
Gangrene
Region of hind limb below stifle I.e. Tibia
Gaskin
Inflammation of the stomach
Gastritis
Genetic makeup of a cell. Determines the phenotype
Genotype
Hinge joint
Ginglymus
Simple carbohydrate. Used in many metabolic processes as an energy source
Glucose
Steroid hormones secreted by adrenal glands. These exert an anti-inflammatory effect on arthritis and dermatitis
Glucosteroids
Complex branched carbohydrate broken down into glucose when needed by the body. Stored in liver and muscles
Glycogen
Enlarged thyroid
Goiter
Of the stifle, or genu
Gonio
Develops at the site of a healing wound. This newly formed tissue is rich I’m blood vessels but lacks nerve endings
Granulation
Accumulation of white blood cells at an offending agent. This lesion is indicative of chronic infection
Granuloma
Drainage at the coronary band of the foot caused by infection ravelling up the hoof wall
Gravel
Acute dermatitis under the fetlock
Greasy heel
Large collection of neurone bodies within the CNS
Grey matter (neurology)
Effect on many tissues to stimulate growth
Growth hormone (GH)
See ‘physis’
Growth plate
Learning process whereby response to a stimulus gradually declines. Animal eventually becomes desensitised and no longer responds to the stimulus
Habituation
Oxygen-carrying 4-part protein inside red blood cells. Contains and haem unit, which carries an iron ion
Haemoglobin (Hb)
Bone and tissue making up the roof of the mouth. It separates the oral and nasal cavities
Hard palate
COPD, SAD or SAPD. The end stage of these diseases causing marked hyper trophy of the abdominal muscles,as seen by the ‘heave line’ during expiration. Double expiratory effort seen
Heaves
Removal of part of the vertebral arch to decompress the spinal cord in thoracic to lumbar regions
Hemilaminectomy (orthopaedics)
Form of cartilage found on joint surfaces, growth plates and healing bones
Hyaline (orthopaedics)
Muscles ventral to the spinal column. Generally refers to the muscles causing ventroflexion, but technically most muscles are hypaxial
Hypaxial (muscles)
The bending of a joint to increase the angle between the bones which make the joint, beyond 180 degrees
Hyperextension
Increase in cell numbers
Hyperplasia
Increased thyroid activity mainly seen in older cats. May see sudden hindlimb paralysis due to blood clots
Hyperthyroidism
Muscle has more palpable tone than normal
Hypertonic (palpation)
Increase in tissue mass. Due to an increase in cell size, not cell numbers
Hypertrophy
Decrease in cell mass due to a decrease in cell numbers
Hypoplasia
Muscle has less palpable tone than normal
Hypotonic (palpation)
Decrease in tissue mass. Due to a decrease in cell size, not cell number
Hypotrophy
Having no known cause
Idiopathic
Antibodies
Immunoglobulins
Localised tissue death as a result of an obstructed blood supply
Infarct
Tube like space in the centre of incisors and cheek teeth. In equine teeth this is filled or nearly filled with cementum
Infundibulum (anatomy)
Distribution of nerves to a particular area
Innervation
Old name for the pelvis (os coaxae)
Innominate bone (anatomy)
See equine metabolic syndrome
Insulin-resistant diabetes mellitus
The skin
Integument (anatomy)
Specialised group of protein molecules able to inhibit growth of tumour cells, to inhibit rep,I cation of viruses and to modulate certain compounds of the immune system
Interferons
Area outside cells, but still within the organic matrix
Interstitial (anatomy)
Able to change atoms to ions (charged atoms). Ionising radiation includes X-rays and radioactive isotopes
Ionise
Caused by loss of blood supply
Ischaemic
Endocrine cells of the pancreas. Cells in this area are the source of insulin
Islets of Langerhans