Describe the body’s responses to decreasing body
temperature. (p. 182)
Review how air saturated with water vapor may interfere
with body temperature regulation. (p. 182)
6.5 Healing of Wounds and Burns
Distinguish between the healing of shallow and deeper
breaks in the skin. (p. 183)
Distinguish among F
rst-, second-, and third-degree
burns. (p. 184)
Describe possible treatments for a third-degree burn.
6.6 Life-Span Changes
Discuss three a±
ects of aging on skin. (p. 186)
6.4 Regulation of Body Temperature
Explain the importance of body temperature regulation.
Describe the role of the skin in promoting the loss of
excess body heat. (p. 182)
Match each means of losing body heat with its
description. (p. 182)
uid changes from liquid to a gas
B. heat moves from body directly
into molecules of cooler objects in
contact with its surface
C. heat rays escape from warmer
surfaces to cooler surroundings
D. continuous circulation of air over a
OUTCOMES 1.5, 6.3, 6.4
1. What methods might be used to cool the skin of a child
experiencing a high fever? For each method you list, identify
the means by which it promotes heat loss—radiation,
conduction, convection, or evaporation.
OUTCOMES 5.3, 6.2
2. Why would collagen and elastin added to skin creams be
unlikely to penetrate the skin—as some advertisements imply
OUTCOMES 5.3, 6.2, 6.4
3. A premature infant typically lacks subcutaneous adipose
tissue. Also, the surface area of an infant’s body is relatively
large compared to its volume. How do these factors affect the
ability of an infant to regulate its body temperature?
INTEGRATIVE ASSESSMENTS/CRITICAL THINKING
4. Which of the following would result in the more rapid
absorption of a drug: a subcutaneous injection or an
intradermal injection? Why?
5. Everyone’s skin contains about the same number of
melanocytes even though people come in many different
colors. How is this possible?
OUTCOMES 6.2, 6.3, 6.4
6. What special problems would result from the loss of 50% of
a person’s functional skin surface? How might this person’s
environment be modi± ed to compensate partially for such a loss?
OUTCOMES 6.2, 6.5
7. As a rule, a super±
cial partial-thickness burn is more painful
than one involving deeper tissues. How would you explain this
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