When body temperature is too low,which of the following occurs?
A)Blood vessels in the skin constrict.
B)Muscles relax.
C)Sweat glands are activated.
D)Blood vessels at the body surface dilate and fill with blood.

Question

Quizplus · Accepted Answer

When body temperature is too low, blood vessels in the skin constrict (get smaller) to reduce blood flow near the surface and conserve heat. This helps to maintain a warmer core temperature. Choices B and C are incorrect because they are not related to regulating body temperature when it is too low. Choice D is incorrect because dilating (expanding) blood vessels would actually increase blood flow near the skin surface, leading to heat loss.

When Body Temperature Is Too Low,which of the Following Occurs