When a person is hot, a network of capillaries in the skin opens up so that blood flow is increased and the heat from the blood dissipates from the skin. This process is called
A)vasoconstriction
B)excretion
C)vasodilation
D)secretion
E)regulation

Question

Quizplus · Accepted Answer

The body regulates body temperature through a network of capillaries in the skin which open up or dilate (vasodilation) to cool the body, or narrow and constrict (vasoconstriction) when a person is cold, thereby retaining body heat.

When a Person Is Hot, a Network of Capillaries in the Skin