physiology basics week 1 Flashcards
define homeo stasis
the maintenance of internal conditions and environment
what is steady state exercise
the state of equilibrium the body reaches when exercising
what factors of the body can change in homeostasis
bp, hr, temp
what is dynamic consistency
changes in arterial pressure at rest
what detects changes in bp
baroreceptors
what is the steady state when exercising
the plateau
what are the 2 control systems of the body
intracellular and organ systems
example of organ systems
respiratory / cardiovascular
example of intracellular control systems
protein breakdown and synthesis, energy production, maintaining stored nutrients
what are the 3 main parts of biological systems
sensors, effectors and control center
what are the 3 types of feedback
negative, positive and feedforward
what is negative feedback
reverses things so back to normal
example of negative feedback
reduces co2 build up
what is positive feedback
increases the original stimulus
example of positive feedback
labor - cervix receptors are stimulates to release oxytocin for uterine contractions
