the arector pili muscle.
arector pili muscle
Arector pili muscles get innervation from sympathetic out flow. But the neurotransmitter is acetylcholine. So functionally the nerve supply is parasympathetic.
we all get goosebumps when it is cold because your skin sqeezes together to keep heat inside your body
Arector Pill Muscle
arrector pili.
The arrector pili muscles makes the hairs on your arm stand on end.
The Arrector Pili muscle
The muscles are called arrector pili and they pull the hair upright for both of those reasons and a few others.. let me know if you want to know more :)
erector pili
arrector pili
arrector pili muscle