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chapter 8 skin, hair, and nails questions
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chapter 8 skin, hair, and nails questions
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chapter 8 skin, hair, and nails questionsThe skin repairs surface wounds by:
a.
exaggerating cell replacement.
b.
excreting lactic acid.
c.
producing vitamins.
d.
providing a mechanical barrier. - correct answer-A
The skin's tissue cells have a rapid rate of turnover and constant renewal, thereby enabling
the skin to repair damaged surfaces.
The adipose tissue in the hypodermis serves to:
a.
provide sensory input.
b.
generate heat and insulate.
c.
create tensile strength.
d.
secrete collagen. - correct answer-B
The hypodermis layer consists of adipose tissue that serves to generate heat and provide
insulation, shock absorption, and a reserve of calories.
Sweat glands, hair, and nails are all formed from:
a.
basement membranes under cellular strata.
b.
closely packed squamous cells.
c.
invaginations of epidermis into dermis.
d.
papillae that penetrate the epidermis. - correct answer-C
Skin appendages are formed embryonically when the epidermis invaginates into the dermis.
The secretory activity of the sebaceous glands is stimulated by:
a.
body heat.
b.
ambient temperature.
c.
sex hormones.
d.
dietary protein. - correct answer-C
, The sebaceous glands, when stimulated by the sex hormones, produce a lipid-rich
substance that keeps the skin moist.
Mrs. Tuber is a 36-year-old patient who comes into the health center with complaints that her
fingernails are not growing. Which structure is the site of new nail growth?
a.
Cuticle
b.
Perionychium
c.
Matrix
d.
Nail bed - correct answer-C
The white crescent-shaped area beyond the proximal nail fold is called the matrix, which is
the site of new nail growth.
Mrs. Leonard brings her newborn infant into the pediatrician's office for a first well-baby visit.
As the health care provider, you teach her that newborns are more vulnerable to
hypothermia because of:
a.
the presence of coarse terminal hair.
b.
desquamation of the stratum corneum.
c.
their covering of vernix caseosa.
d.
a poorly developed subcutaneous fat layer. - correct answer-D
Newborns have a poorly developed subcutaneous fat layer and therefore have a reduced
ability to generate heat.
7. Mrs. Mulligan brings her 16-year-old son into the office for a sports physical examination.
As the health care provider, you explain that normal hormone-related changes of
adolescence include:
a.
increased oil production.
b.
slowed hair growth.
c.
depleted apocrine glands.
d.
decreased sebaceous gland activity. - correct answer-A
During adolescence, the sebaceous glands increase sebum production, which causes the
skin to have an oily appearance and predisposes the individual to acne.
Expected hair distribution changes in older adults include:
a.
increased terminal hair follicles on the scalp.
b.
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