Arrector pili muscle

Details
NerveSympathetic postganglionic nerve fibers
Identifiers
TA98A16.0.00.024
TA27051
THH3.12.00.3.01041
FMA67821
Anatomical terms of muscle

The arrector pili muscles, also known as hair erector muscles, are small muscles attached to hair follicles in mammals. Contraction of these muscles causes the hairs to stand on end, known colloquially as goose bumps (piloerection).

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