homeostasis Flashcards
1
Q
what is homeostasis
A
maintenance of a stable enviroment within set limits
2
Q
why is homeostasis important
A
.keeps internal enviroment constant for metabolic reactions
.ensures proper cell functionality
3
Q
theromoregulation
A
maintaining body temp
4
Q
how endotherms reduce body temp
A
.increasing sweat
.flattening hair
.vasodilation
5
Q
how do endotherms increase body temp
A
.shivering
.minimise sweating
.erecting hair
.vasoconstriction
6
Q
how hypothalamus controls body temp
A
.collects info from temperature receptor for core body temp and peripheral receptors for surface temp
.when a deviation is detected, hypothalamus sends signals to effectors like muscles and sweat glands
