The Arrector Pili Muscle Causes

Question

The arrector pili muscle causes
A) alopecia
B) goose pimples
C) lanugo
D) male pattern baldness

Accepted Answer

The arrector pili muscle is responsible for the formation of goosebumps by contracting in response to cold or emotional stimuli, which pulls on the surrounding skin and causes the hairs to stand upright. It is not involved in alopecia, lanugo, or male pattern baldness.