Disease Flashcards
Disease
condition of the living animals or plant body or of one its parts that impairs normal functioning and is typically manifested by distinguishing signs and symptoms
Pathology
study of the causes and effects of disease or injury
Sign
objective evidence of a disease can be identified by an outside observer
Examples of a sign
skin rash
If a sign causes a physical change in animals tissues it is called a _______________.
lesion
Symptom
subjective evidence of a disease can only be recognized by the individual experiencing it other must be informed
Example of a symptom
headache, fatigue
Five impacts of disease
- Decrease in animal welfare
- Loss of life
- decreased biological production
- economic loss
- zoonotic risk
DAMNIT
D= degenerative
A=Anomalous
M=metabolic
N=nutritional
I=inflammatory
T=traumatic
Neoplasia
cancer
Congenital
present from birth
Iatrogenic
caused by medical interventions
Idiopathic
disease that arises spontaneously and the cause is unknown
Pathognomonic
if a sign or symptom is characteristic or diagnostic for a specific disease
What disease types are most common in livestock?
-noninfectious (trauma, nutritional, toxic, inherited)
-infectious
Muscular system
-major structure
-function
-muscles (skeletal, cardiac, and smooth)
-provides structure to body; supports and moves trunk and limbs; moves substances throughout body
Skeletal system
-major structure
-function
-bones
-provides structure; supports and protects internal organs
Integumentary system
-major structure
-function
-skin, hair, nails
-protects against pathogens; helps regulate body temperature
Circulatory system
-major structure
-function
-heart, blood vessels, and blood
-transports nutrients and waster to and from all body tissues
Respiratory system
-major structure
-function
-air passages, lungs
-carries air in and out of lungs, where gases are exchanged
Immune system
-major structure
-function
-lymph nodes and vessels, white blood cells
-provides protection against infection and disease
Digestive system
-major structure
-function
-mouth, esophagus, stomach, liver pancreas, small and large intestines
- stores and digests food; absorbs nutrients and eliminates waste
Excretory system
-major structure
-function
-kidneys, ureters, bladders, urethra, skin, lungs
-eliminates wastes; maintains waster and chemical balance
Nervous system
-major structure
-function
-brain, spinal cord, nerves, sense organs, receptors
-controsl and coordinates body movements and senses; controls consciousness and creativity; helps monitor and maintain other body systems
