5
The Integumentary System
The Skin
(pp. 150–157)
Epidermis (pp. 151–154)
Dermis (pp. 154–156)
Skin Color (pp. 156–157)
Appendages of the Skin
(pp. 157–162)
Hairs and Hair Follicles (pp. 157–160)
Nails (p. 160)
Sweat (Sudoriferous) Glands (pp. 160–161)
Sebaceous (Oil) Glands (pp. 161–162)
Functions of the Integumentary
System
(pp. 162–164)
Protection (pp. 162–163)
Body Temperature Regulation (p. 163)
Cutaneous Sensation (p. 163)
Metabolic Functions (p. 163)
Blood Reservoir (p. 163)
Excretion (p. 163)
Homeostatic Imbalances of Skin
(pp. 164–167)
Skin Cancer (pp. 164–165)
Burns (pp. 165–166)
Developmental Aspects of the
Integumentary System
(p. 167)
From Infancy to Adulthood (p. 167)
Aging Skin (p. 167)
150
W
ould you be enticed by an ad for a coat that is waterproof,
stretchable, washable, and permanent-press, that automatically repairs small
cuts, rips, and burns? How about one that’s guaranteed to last a lifetime?
Sounds too good to be true, but you already have such a coat—your skin.
Te skin and its derivatives (sweat and oil glands, hairs, and nails) make up a complex
set of organs that serves several functions, mostly protective. ±ogether, these organs form
the
integumentary system
(in-teg
0
u-men
9
tar-e).
The Skin
Name the tissue types composing the epidermis and dermis. List the major layers of
each and describe the functions of each layer.
Describe the factors that normally contribute to skin color. Briefly describe how
changes in skin color may be used as clinical signs of certain disease states.
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