Anatomy and Physiology Ch. 5 Integumentary System Mastery Learning Test in Work
Multiple Choice
Identify the
choice that best completes the statement or answers the question.
|
|
|
1.
|
The hypodermis
a. | is the layer of skin where hair is produced | b. | is the layer of skin
where nails are produced | c. | connects the dermis and the
epidermis | d. | is dense irregular connective tissue | e. | none of the
above |
|
|
|
2.
|
Fingerprint and footprint patterns are a result of the development of the
a. | stratum corneum | b. | dermis | c. | hypodermis | d. | stratum
germinativum |
|
|
|
3.
|
The layer of skin (where mitosis occurs) that replaces cells lost from the outer
layer of the epidermis is the
a. | stratum corneum | b. | stratum basale | c. | reticular layer of
the dermis | d. | hypodermis |
|
|
|
4.
|
If a splinter penetrates the skin of the sole of the foot to the second
epidermal layer from the surface, the last layer damaged is the
a. | stratum granulosum | b. | stratum basale | c. | stratum
corneum | d. | stratum lucidum |
|
|
|
5.
|
In what area of the body would you expect to find an especially thick stratum
corneum?
a. | back of the hand | b. | abdomen | c. | over the
shin | d. | bridge of the nose | e. | heel of the
foot |
|
|
|
6.
|
The function of melanin in the skin is
a. | lubrication of the skin | b. | prevention of skin
infections | c. | protection from ultraviolet light | d. | to reduce water loss | e. | to help regulate
body temperature |
|
|
|
7.
|
Concerning skin color, which of the following statements is NOT correctly
matched?
a. | skin appears yellow - carotene present | b. | no skin pigmentation (albinism) - genetic
disorder | c. | skin tans - increased melanin production | d. | skin appears blue
(cyanosis) - oxygenated blood | e. | Afro-Americans darker than Caucasians - more
melanin in Afro-Americans |
|
|
|
8.
|
Hair
a. | is produced by the matrix of the hair bulb | b. | consists of dead
epithelial cells | c. | is colored by melanin | d. | is the same thing as fur | e. | all of the
above |
|
|
|
9.
|
A hair follicle is
a. | an extension of the epidermis deep into the dermis | b. | an extension of the
dermis deep into the epidermis | c. | often associated with merocrine sweat
glands | d. | a and c | e. | b and c |
|
|
|
10.
|
Smooth muscles that produce “goose flesh” when they contract and are
attached to hair follicles are called
a. | external root sheaths | b. | arrector pili | c. | dermal
papillae | d. | internal root sheaths |
|
|
|
11.
|
Sebum
a. | oils the hair | b. | is produced by sweat glands | c. | consists of dead
cells from hair follicles | d. | all of the
above |
|
|
|
12.
|
A congenital lack of merocrine sweat glands would primarily affect one’s
ability to
a. | secrete waste products | b. | flush out secretions that accumulate in the
hair follicle | c. | oil the skin | d. | prevent bacteria from growing on the
skin | e. | control one’s body temperature in warm
environments |
|
|
|
13.
|
Nails
a. | appear pink because of a special pigment within nail cells | b. | are an outgrowth of
the dermal papillae | c. | contain lots of hard
keratin | d. | all of the above |
|
|
|
14.
|
While building the patio deck to his house, an antomy and physiology instructor
hit his finger with a hammer. He responded to this stimulus by saying, “Gee, I hope I
didn’t irreversibly damage the ___________, because if I did, my fingernail will never grow
back.”
a. | nail bed beneath the nail body | b. | stratum corneum | c. | nail
matrix | d. | eponychium | e. | a and b |
|
|
|
15.
|
To increase heat loss from the body, one would expect
a. | dilation of dermal capillaries | b. | constriction of dermal
capillaries | c. | increased sweating | d. | a and c | e. | b and
c |
|
|
|
16.
|
An experimenter examined the relationship between body temperature and water
loss in an animal. At different air temperatures, the amount of water lost and the body temperature
of the animal was measured with the following results:
Given the following statements:
1.
The animal has sweat glands
2. The animal conserves water at low air temperatures
3. The skin
of the animal is resistant to water loss
4. The animal uses water loss to maintain body
temperature at a constant level at all air temperatures.
Using the experimental results, which
of the statements can you conclude are true?
a. | 2, 3 | b. | 1, 2, 3 | c. | 1, 3,
4 | d. | 2, 3, 4, | e. | 1, 2, 3, 4 |
|
|
|
17.
|
Body odor
a. | results from special scent glands located under the arm pits | b. | occurs when bacteria
break down the organic secretions of apocrine glands | c. | results from a chemical reaction of sweat with
the air | d. | results from sebum | e. | results from
keratin |
|
|
|
18.
|
Skin aids in maintaining the calcium and phosphate levels of the body at the
optimum levels by participating in the production of
a. | vitamin A | b. | vitamin B | c. | vitamin
D | d. | melanin | e. | keratin |
|
|
|
19.
|
On a sunny spring day a student decided to initiate her annual tanning ritual.
However, in doing so she fell asleep while sunbathing. After awakening, she noticed that the skin on
her back was burned. She experienced redness, blisters, edema, and significant pain. The burn was
nearly healed about 10 days later.
The burn was best classified as a
a. | first degree burn | b. | second degree burn | c. | third degree
burn | d. | fourth degree burn |
|
|
|
20.
|
A burn patient is admitted into the hospital while you are present in the
emergency room. Someone asks for an estimate of the percentage of surface area burned. Remembering
the formula for assessing the extent of burns, you take a shot at it. If the patient is burned on the
entire left upper and lower limbs and over three quarters of the anterior and posterior trunk, what
is the estimate?
a. | 54% | b. | 63% | c. | 45% | d. | 72% | e. | none of the
above |
|