What is the name of the muscle that causes goosebumps?

Question

What is the name of the muscle that causes goosebumps?

Answer 1

levator pilli I think.

Answer 2

Goose bumps are a temporary local change in the skin. The chain of events leading to this skin change starts with a stimulus such as cold or fear. That stimulus causes a nerve discharge from an involuntary portion of the nervous system called the sympathetic nervous system. The nerve discharge causes contraction of little muscles called the arrectores pilorum (the hair erector muscles). Contraction of these muscles elevates the hair follicles above the rest of the skin. And it is these tiny elevations we perceive as goose bumps.

Answer 3

arrectores pilorum: the tiny muscles at the base of each hair follicle

Answer 4

The hair erector muscle, part of the hair-skin-gland combination.