Definitions for "Arrector pili"
Keywords:  goose, follicle, goosebumps, rek, tor
a tiny muscle attached to the base of the hair follicle. When this involuntary muscle flexes, it causes the hairs to stand up and causes "goosebumps."
smooth muscles attached to hairs; contraction pulls the hairs into a more vertical position, resulting in goose bumps
A minute muscle attached to the follicle, which when contracted, pulls the hair erect (goose flesh) in response to cold and other stimuli.