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introduction to pathology - Coggle Diagram
introduction to pathology
definition:
study of disease
general pathology
cellular degeneration
necrosis
inflammation
tumours
systemic pathology
cardiovascular
GI tract
respiratory
skin
mechanisms of disease
effects on body systems
key terms
aetiolgy
causal factors
pathogenesis
development of disease within the body
lesions
structural changes caused by disease in live tissue
pathophysiology
functional changes
sequelae
consquences of disease
remote/distant effects
disease at one site has effects on other sites on body
factors involved in disease development
host
breed, age, nutritional and immune status, species
recent or concurrent disease
prev exposure of agent
agent
dose/virulence
number of agents involved
presence of agent doesnt mean it will definitely cause disease
environment
overcrowding
mixing animals, carriers
changes in management routine
types of agent causing disease
infectious
viruses
bacteria
fungi
parasites
physical
trauma
pressure
heat
cold
radiation
chemical
toxic organic/inorganic substances
toxins from infectious organisms
nutritional
dificiencies in vitamins and trace elements
excess vitamins/trace elements
genetic
incompatible with life
affects specific systems
range of defects
disease examples
viral
foot and mouth
bacterial
lumpy jaw
parasitic
lungworm
traumatic
perforation of organs
peritonitis (inflammation of peritoneum)
toxic
poisoning in cattle
nutritional
vitamin E deficiency
selenium deficiency
genetic
myofibrillar hypoplasia
remote effects
sertoli cell tumors
larger tumours produce oestrogen
causes feminisation
atrophy of testicle
metaplasia
lesions
abnormalities or changes due to disease in living tissues
descriptions
size
shape
colour
weight
texture and consistency
apprearance of cut surface
contents of hollow organs
positions and effects on adjacent tissues
can be clinically significant or incidental
pathology techniques
bioochemistry
urine, blood etc
cytology
necropsy
histopathology
immunological methods
antibodies/antigens
electron microscopy
bacteriology/virology/parastology
toxicology