Controlling Body Temp

Question 1

What does body have to do keep body temp constant

Answer 1

Balance amount of energy gained and lost

Question 2

What does thermoregulatory Centre im brain do

Answer 2

Contains receptors that are sensitive to temp of blood flowing thro brain and receives impulses to temp receptors in skin

Question 3

What does body do when u are too hot

Answer 3

Sweat produced by sweat glands and evaporates off skin - transfers energy to environment
Blood vessels dilate so more blood flows to surface - vasodilation - transfers energy to environment

Question 4

What does body do when to cold

Answer 4

Hair stand up to trap insulating layer
No sweat produced
Blood vessels supplying skin capillaries constrict to close skin blood supply - vasoconstriction
Shiver which helps respiration that transfers energy to warm body