Integumentary System

 Learning objectives

By the end of this section, you will be able to do the following:

• Identify the major functions of skin
• Identify the layers and structures found in skin
• List the different layers in the epidermis, and describe the characteristics of the cells in these layers
• Describe the structure of the dermis and the hypodermis
• Explain how melanocytes produce melanin and why this is important
• Describe the structure of a hair follicle
• Explain the role of piloerection with respect to thermoregulation and communication
• List the two main types of skin glands (sebaceous and sweat) and their functions
• Identify the common cornified epidermal structures found in animals