Essentials of Human Anatomy & Physiology (12th Edition)

Published by Pearson
ISBN 10: 1292216239
ISBN 13: 978-1-29221-623-2

Chapter 4 - Skin and Body Membranes - Review Questions - Page 158: 17

Answer

Arrector pili are smooth muscles responsible for “goose bumps.”

Work Step by Step

Arrector pili connect each side of the hair follicle to the dermal tissue. When these muscles contract, the hair is pulled upright, dimpling the skin surface.
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