Quiz 5 - A&P
The skin is also called the ________ membrane.
cutaneous
During skin repair, most of the scab consists of an insoluble network of ________, a protein that forms from blood proteins during the clotting response.
fibrin
Which type of burn appears inflamed and feels tender but has no blisters?
first-degree
A burn that destroys only the superficial cells of the epidermis, such as a mild sunburn, is classified as
first-degree.
Melanin serves to protect cells in the deeper layers of the epidermis from ________.
ultraviolet radiation
During the regeneration process of the skin after an injury, what is the combination of blood clot, fibroblasts, and an extensive capillary network called?
granulation tissue
Which of the following is the function of the combination of epidermal ridges and dermal papillae?
Correct increase surface area for diffusion between the dermis and epidermis
The epidermal layer whose cells have stopped dividing and started to produce large amounts of keratin is the
Correct stratum granulosum.
It provides water-resistant properties to the integument.
It protects DNA from the damaging effects of ultraviolet radiation.
Why are injections administered in the hypodermis when administering drugs using a hypodermic needle?
There are no vital organs in the region.
A "rug burn," which scrapes the skin, is an example of a(n)
abrasion
Projections of loose connective tissue from the dermis, which extend upward between the adjacent ridges of the epidermis, are called ________.
dermal papillae
Epidermal cells are supplied with nutrients from blood vessels in the
dermis.
Thin skin is defined by the thickness of the
epidermis
Perspiration that is produced by apocrine sweat glands
is limited to the hair follicles of the axilla, nipples, and groin.
Drugs suspended in ________ or ________ can be carried across the plasma membranes of the epidermal cells.
oils; lipid-soluble solvents
Thick skin can be found on the
palms
Functions of the skin include
regulating body temperature.
Merocrine sweat glands
respond primarily to elevated body temperature.
The type of burn that injures the hypodermis, deeper tissues, and organs is a(n)
third-degree burn.
