3: Integumentary System — Read

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This chapter describes the structure and functions of the epidermis and dermis, hair, nails, and sweat and sebaceous glands. In addition, the chapter outlines types of skin diseases, disorders, and injuries.

3.1: Case Study- Skin Cancer
In this chapter, you will learn about the structure and functions of the integumentary system. Specifically, you will learn about: The functions of the organs of the integumentary system - the skin, hair, and nails - including protecting the body, helping to regulate homeostasis, and sensing and interacting with the external world. The two main layers of the skin: the thinner outer layer called the epidermis and the thicker inner layer called the dermis.
3.2: Introduction to the Integumentary System
In addition to the skin, the integumentary system includes the hair and nails, which are organs that grow out of the skin. Because the organs of the integumentary system are mostly external to the body, you may think of them as little more than accessories, like clothing or jewelry, but they serve vital physiological functions. They provide a protective covering for the body, sense the environment, and help the body maintain homeostasis.
3.3: Layers of the Skin
3.4: Accessory Structures of the Skin
3.5: Functions of the Integumentary System
3.6: Diseases, Disorders, and Injuries of the Integumentary System
3.7: Case Study Conclusion- Skin Cancer and Chapter Summary
Skin cancer begins in the outer layer of skin, the epidermis. There are three common types of skin cancer: basal cell carcinoma, squamous cell carcinoma, and melanoma.

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