The muscle associated with a hair follicle that causes the hair to stand on end when contracted is called the ___.
A) spinous folliculi
B) arrector pili
C) arrector ceruminae
D) pili folliculi
E) pili folliculus spinous

Question

Quizplus · Accepted Answer

The arrector pili muscle is a small muscle attached to hair follicles in mammals. Its contraction causes the hair to stand on end, a phenomenon known as piloerection or "goosebumps."

The Muscle Associated with a Hair Follicle That Causes the Hair