In order to retain heat, what occurs in the skin on a cold day?
A) Blood vessels of the dermis constrict.
B) Blood vessels of the dermis dilate.
C) Blood vessels of the epidermis constrict.
D) Blood vessels of the epidermis dilate.

Question

Quizplus · Accepted Answer

On a cold day, the blood vessels in the dermis constrict to reduce blood flow to the skin, minimizing heat loss and helping to retain body heat.

In Order to Retain Heat, What Occurs in the Skin