Anatomy & Physiology: The Unity of Form and Function, 7th Edition

Published by McGraw-Hill Education
ISBN 10: 0073403717
ISBN 13: 978-0-07340-371-7

Chapter 6 - The Integumentary System - Study Guide - True or False - Page 200: 6

Answer

The statement "Dermal papillae are better developed in skin subjected to a lot of mechanical stress than in skin subjected to less stress" is false. Dermal papillae are small, finger-like projections of the dermis (the layer of skin beneath the epidermis) that extend into the epidermis. They play a role in anchoring the epidermis to the dermis and are involved in forming fingerprints and enhancing grip. Dermal papillae are not necessarily better developed in skin subjected to a lot of mechanical stress. In fact, the development of dermal papillae is largely genetically determined and is consistent across individuals, regardless of the level of mechanical stress to which their skin is subjected. Factors like genetics and age primarily influence the presence and pattern of dermal papillae. So, the statement is false because mechanical stress does not significantly impact the development of dermal papillae.

Work Step by Step

The statement "Dermal papillae are better developed in skin subjected to a lot of mechanical stress than in skin subjected to less stress" is false. Dermal papillae are small, finger-like projections of the dermis (the layer of skin beneath the epidermis) that extend into the epidermis. They play a role in anchoring the epidermis to the dermis and are involved in forming fingerprints and enhancing grip. Dermal papillae are not necessarily better developed in skin subjected to a lot of mechanical stress. In fact, the development of dermal papillae is largely genetically determined and is consistent across individuals, regardless of the level of mechanical stress to which their skin is subjected. Factors like genetics and age primarily influence the presence and pattern of dermal papillae. So, the statement is false because mechanical stress does not significantly impact the development of dermal papillae.
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