What is the muscle that controls the size of the scrotum depending on the environmental temperature?
A) Dartos muscle
B) Abdominal muscle
C) Cremaster muscle
D) All of these are correct

Question

Quizplus · Accepted Answer

The dartos muscle is a thin layer of smooth muscle that lies beneath the skin of the scrotum. It is responsible for controlling the size of the scrotum depending on the environmental temperature. When the temperature is cold, the dartos muscle contracts, causing the scrotum to shrink and the testes to be pulled closer to the body for warmth. When the temperature is warm, the dartos muscle relaxes, causing the scrotum to expand and the testes to hang lower away from the body for cooling.

What Is the Muscle That Controls the Size of the Scrotum