What kind of tissue is arrector pili muscle?

2 responses
January 10, 2021
What advantage is it that the human body temperature 37 degrees?
January 10, 2021

The arrector pili consists of smooth muscle tissue.

It consists of narrow diamond-shaped cells with a single, centrally located nucleus. Each cell must be separately stimulated by nerves of the autonomic in order to contract.

The arrector pili (“raiser of the hair”) is a band of muscle tissue that connects a follicular unit to the dermis.

Contraction of the arrector pili is involuntary.

Stresses such as cold and fear may stimulate the autonomic nervous system and cause contraction — making the hair stand on end.

In humans, the result is called goose bumps.

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