Homeostasis - Body Temperature

Our body temperature should stay close to __________ °C for our cells and overall metabolism to work effectively. To do this our thermoregulatory centre in the brain monitored our __________ and controls the relevant __________ so that we can gain or lose heat.

There are five ways in which the skin can respond and try to keep our body temperature constant:

Too Hot	Too Cold
__________ the skin capillaries, increasing the __________ flow to, and consequently the amount of heat lost from the __________ by increasing the amount of __________, which cools the body by evaporation	by __________ skin capillaries, decreasing the blood flow and the amount of heat lost. __________ are stood up on the skin by goose bumps. These raised hairs trap more __________ next to the skin, which acts as an __________ and helps to keep us warm. __________ causes muscles to contract. This stimulates respiration and heat is given out.