comtrol body temperature Flashcards
1
Q
what is body temperature monitored and controlled by?
A
thermoregulatory centre (hypothalamus) in the brain
2
Q
what are the receptors in the thermoregulatory centre sensitive to?
A
the temperature of the blood
3
Q
what type of receptors are in the skin?
A
temperature receptors
4
Q
what do the receptors in the skin do?
A
send nervous impulses to the thermoregulatory centre
5
Q
what happens if body temperature is too high? and why?
A
blood vessels dilate (vasodilation) and sweat is produced
both of these cause a transfer of energy from the skin to the environment
6
Q
what happens when body temperature is too low?
A
blood vessels constrict (vasoconstriction), sweating stops, and skeletal muscles contract (shiver)
