The skin is our most extensive sense organ. It is equipped with a variety of nerve endings that react to heat, cold, touch, texture, pressure, vibration, and tissue injury. These sensory receptors are especially abundant on the face, palms, fingers, soles, nipples, and genitals. There are relatively few on the back and in skin overlying joints such as the knees and elbows. Some receptors are naked dendrites that penetrate into the epidermis. Most, however, are limited to the dermis and hypodermis. The individual types of cutaneous receptors are described in chapter 16.
Saladin: Anatomy & I 6. The Integumentary I Text I I © The McGraw-Hill
Physiology: The Unity of System Companies, 2003 Form and Function, Third Edition
200 Part Two Support and Movement
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This ebook provides an introductory explanation of the workings of the human body, with an effort to draw connections between the body systems and explain their interdependencies. A framework for the book is homeostasis and how the body maintains balance within each system. This is intended as a first introduction to physiology for a college-level course.