Homeostasis exam questions

Question 1

What role does the hypothalamus have in thermoregulation?

Answer 1

• When it senses that body temp is too high or too low it sends signals to muscles, organs and glands and nervous system.
• this then triggers the body’s mechanisms of either cooling down or heating up the body

Question 2

Describe what happens to the blood vessels in thermoregulation?

Answer 2

• talk about vasodilation and vasoconstriction and ehy this happens.

Question 3

Why is the skin efficient in maintaining a consistent core temperature?

Answer 3

-The skin has temperature receptors which signals the hypothalamus the makes changes this then signals muscles in the skin yo either keep heat in or keep it out.

Question 4

What two roles do muscles play in thermoregulation?

Answer 4

• Regulate shivering and sweating, they also contract or relax to control hairs on the skin

Question 5

Why is the core temp set at 37C?

Answer 5

• Because our enzymes work most effectively at that temperature