Essentials of Anatomy and Physiology

88

CHAPTER 5

Chapter Outline

The Skin
Epidermis
Stratum germinativum
Stratum corneum
Langerhans cells
Melanocytes
Dermis
Hair follicles
Nail follicles
Receptors
Glands
Blood vessels
Subcutaneous Tissue
Aging and the Integumentary System

BOX5–1 BURNS

BOX5–2 PREVENTING SKIN CANCER:COMMON

SENSE AND SUNSCREENS

BOX5–3 COMMON SKIN DISORDERS

BOX5–4 ADMINISTERING MEDICATIONS

Student Objectives

• Name the two major layers of the skin and the
  tissue of which each is made.


• State the locations and describe the functions of
  the stratum germinativum and stratum corneum.


• Describe the function of Langerhans cells.


• Describe the function of melanocytes and melanin.


• Describe the functions of hair and nails.


• Name the cutaneous senses and explain their
  importance.


• Describe the functions of the secretions of seba-
  ceous glands, ceruminous glands, and eccrine
  sweat glands.


• Describe how the arterioles in the dermis respond
  to heat, cold, and stress.


• Name the tissues that make up the subcutaneous
  tissue, and describe their functions.