Human Anatomy & Physiology (9th Edition)

Published by Pearson
ISBN 10: 0321743261
ISBN 13: 978-0-32174-326-8

Chapter 5 - The Integumentary System - Review Questions - Page 170: 20c

Answer

Greasy hair and a “shiny nose” are the result of the arrector pili muscle contracting, causing sebum to come out of the hair follicle to the skin surface (shiny nose). If the sebum is forced out directly onto the hair shaft, it results in greasy hair.

Work Step by Step

Greasy hair and a “shiny nose” are the result of the arrector pili muscle contracting, causing sebum to come out of the hair follicle to the skin surface (shiny nose). If the sebum is forced out directly onto the hair shaft, it results in greasy hair.
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