Thermoregulation Flashcards
1
Q
What controls body temperature
A
hypothalamus
2
Q
how does it work
A
it receives impulses from the receptors in the skin and then sends impulses to the effectors
3
Q
examples of low temperature
A
hair stands up-trapping layer of warm air, shivering- movement generates heat
4
Q
what happens to blood vessel when your cold
A
blood vessels narrow allowing less blood to the surface making less heat lost via radiation
5
Q
examples of high temperature
A
sweating- water evaporates then body temperature decreases
6
Q
what happens to blood vessels when your hot
A
blood vessels widen allowing blood to the surface so more heat is lost via radiation
