Anatomy Ch. 5 Review
When the arrector pili muscles contract,
"goosebumps" are formed
Choose the correct order of the cell layers, or strata, in a section of thick skin, from the basement membrane toward the free surface (deep to superficial) 1. stratum lucidum 2. stratum basale 3. stratum corneum 4. stratum granulosum 5. stratum spinosum
2, 5, 4, 1, 3
When the body is overheated, the skin responds by
vasodilation
When a person becomes "pale," what is the physiological basis?
The blood supply to the skin decreases
The condition that results from clogged sebaceous glands is
acne
The glands that begin discharging a sticky, cloudy, and potentially odorous secretion at puberty are called ________ glands.
apocrine
The subcutaneous layer consists of
areolar and adipose tissues
What is the composition of the papillary layer of the dermis?
areolar connective tissue
Which type of burn appears inflamed and feels tender but has no blisters?
first-degree
Modified and specialized sweat glands that produce milk are called ___________ glands.
mammary
The observed differences in skin color reflect the levels of ________ production.
melanin
Functions of the skin include
regulating body temperature
The most severe type of skin cancer is most likely to develop from
melanocytes
Apocrine sweat glands rely on which type of secretion?
merocrine
Thick skin can be found on the
palms
As cells are pushed from the deeper portion of the epidermis toward the surface,
they die
The type of burn that injures the hypodermis, deeper tissues, and organs is a(n)
third-degree burn
_____________ is a pigment found in vegetables that can make skin appear orange or yellow.
Carotene
What is the function of melanin?
It protects DNA from the damaging effects of ultraviolet radiation
The skin is also called the __________ membrane.
cutaneous
The reticular layer is composed largely of __________.
dense regular connective tissue
Epidermal cells are supplied with nutrients from blood vessels in the
dermis
The highly vascular layer of the skin, which provides themoregulation via changing blood flow, is the
dermis
Which of the following is the correct order of the layers of the cutaneous membrane from superficial to deep?
epidermis, dermis, hypodermis
Which of the following is the function of the combination of epidermal ridges and dermal papillae?
increase surface area for diffusion between the dermis and epidermis
Perspiration that is produced by apocrine sweat glands
is limited to the hair follicles of the axilla, nipples, and groin
The protein that contributes to many of the skin's protective qualities is called _________.
keratin
A small amount of ultraviolet radiation is beneficial because it _______________.
stimulates vitamin D3 synthesis in the epidermis
The deepest layer of cells in the epidermis is the cells of the ________.
stratum basale
The layer of the epidermis which contains the oldest cells is the
stratum corneum