Intro Flashcards
(18 cards)
The ability of the body to maintain relatively stable internal conditions
Homeostasis
Afferent pathway
From the outside
Efferent pathway
From the inside
Produces change in variable
Stimulus
Detects change
Receptor
Information is sent along afferent pathways to control center
Input
Information is sent along efferent pathway to effector
Output
Effector feeds back to reduce the effect of stimulus and returns variable to homeostatic level
Response
An active regulatory process that continuously assesses physiological needs and adapts to them
Allostasis
Variables in Allostasis
HR, RR, BP, Temp
Disease process
- Etiology
- Pathophysiology
- Symptoms and signs
Progression of a disease in an individual over time in the absence of treatment
Course of disease
4 stages of disease
- Stage of susceptibility
- Stage of subclinical disease
- Stage of clinical disease
- Stage of recovery disability of death
A systemic and local reaction of tissues and microcirculation to a pathogenic insult
Inflammation
5 keys of inflammation
- heat
- pain
- redness
- swelling
- temporary loss of function
Goals of inflammation
- eliminate cause
- clearing out necrotic cells
- tissue repair
DAMP´s
“Damage Associated Molecular Patterns” is released when: plasma membrane is injured, cell dies
PRR´s
“Pattern Recognition Receptors” activate cell, spark inflammatory response, non-specific
