What is the Result of the Contraction of the Arrector

Question

What is the result of the contraction of the arrector pili muscles?
A) Nail growth
B) Goosebumps
C) Sweating
D) Tanning

Accepted Answer

The contraction of the arrector pili muscles results in the appearance of goosebumps on the skin, which is caused by the pulling of the hair follicles upright. Nail growth, sweating, and tanning are not related to the contraction of arrector pili muscles.