QUESTIONS AND VERIFIED ANSWERS|GRADED A
The MOST significant immediate threat to a patient with a soft-tissue
injury is:
A) nerve damage.
B) infection.
C) disfigurement.
D) hemorrhage. Ans✓✓✓ D
The skin is also referred to as the:
A) melanin.
B) integument.
C) epithelium.
D) collagen. Ans✓✓✓ B
All of the following are functions of the skin, EXCEPT:
A) providing the immune response for the body.
B) protecting the underlying tissue from injury.
C) sensing changes in the external environment.
D) assisting in the regulation of body temperature. Ans✓✓✓ A
The outermost layer of the epidermis:
A) consists of nonliving cells that are continuously being shed.
,B) is a tough, highly elastic layer than contains melanin granules.
C) contains numerous fibroblasts that secrete collagen and elastin.
D) is comprised of living cells that give rise to the stratum corneum.
Ans✓✓✓ A
_________ is a fibrous protein that gives the skin high resistance to
breakage under mechanical stress.
A) Fibrin
B) Elastin
C) Collagen
D) Melanin Ans✓✓✓ C
When the ambient temperature is high:
A) the dermis produces less collagen, which temporarily decreases the
skin's ability to retain warmth.
B) blood vessels in the dermis dilate, which increases blood flow to the
skin and allows heat to dissipate.
C) sweat glands in the epidermis produce sweat, which is evaporated
from the skin surface by the air.
D) constriction of the vessels in the dermis brings warm blood to the
surface of the skin, where it is eliminated. Ans✓✓✓ B
Physical injury to the skin:
A) causes a decrease in the production of macrophages and
lymphocytes, thus increasing the risk of infection.
, B) commonly destroys the stratum corneum, the deep dermal layer of
the skin, and causes nerve damage.
C) promotes cutaneous vasoconstriction, which shunts blood away from
the injury and manifests as pallor around the injury site.
D) triggers mast cells to degranulate and synthesize special chemical
mediators, which causes the injured area to become warm and red.
Ans✓✓✓ D
The skin helps regulate body temperature through:
A) peripheral vasodilation, which shunts cool blood to the core of the
body.
B) the production of sweat, which is evaporated from the surface of the
skin.
C) increased elastin production, which provides insulation to the
epidermis.
D) cutaneous vasoconstriction, which brings warm blood to the skin's
surface. Ans✓✓✓ B
Which of the following substances is produced in the dermis and keeps
the skin supple so that it doesn't crack?
A) Sebum
B) Elastin
C) Collagen
D) Ground substance Ans✓✓✓ A