Which of the Following is an Appropriate Skin Response to Cold

Question

Which of the following is an appropriate skin response to cold?
A)Dermal blood vessels vasodilate.
B)Sebaceous gland secretions increase.
C)Dermal blood vessels vasoconstrict.
D)Vitamin D production increases.

Accepted Answer

When the skin is exposed to cold, dermal blood vessels vasoconstrict (constrict or narrow), allowing less blood flow to the surface of the skin and conserving heat in the body's core. This helps to maintain body temperature. Dermal blood vessels do not vasodilate (dilate or widen) in response to cold. Sebaceous gland secretions and vitamin D production are not directly related to the body's response to cold.