Chapter 12 The Integumentary System 2009 Delmar Cengage

Chapter 12 The Integumentary System © 2009 Delmar, Cengage Learning

Overview of Structures, Combining Forms, and Functions © 2009 Delmar, Cengage Learning

Skin • Primary Functions – First line of defense for the immune system. – Waterproofs the body. – Major receptor for the sense of touch. • Related Combining Forms – cutane/o – dermat/o, derm/o © 2009 Delmar, Cengage Learning

Structures of the Skin © 2009 Delmar, Cengage Learning

Sebaceous Glands • Primary Functions – Secrete sebum (oil) to lubricate the skin. – Discourage the growth of bacteria on the skin. • Related Combining Form – seb/o © 2009 Delmar, Cengage Learning

Sweat and Sebaceous Glands © 2009 Delmar, Cengage Learning

Sweat Glands • Primary Functions – Secrete sweat to regulate body temperature and water content. – Excrete some metabolic waste. • Related Combining Form – hidr/o © 2009 Delmar, Cengage Learning

Hair • Primary Function – Aids in controlling the loss of body heat. • Related Combining Forms – pil/i, pil/o © 2009 Delmar, Cengage Learning

Nails • Primary Function – Protect the dorsal surface of the last bone of each finger and toe. • Related Combining Forms – onych/o – ungu/o © 2009 Delmar, Cengage Learning

Structures of the Fingernails and Toenails © 2009 Delmar, Cengage Learning