Anatomy and Physiology Chapter 5 Midterm
Through which cellular interactions are the cells of the stratum basale firmly attached to the plasma membrane?
hemidesmosomes
The protein that contributes to many of the skin's protective qualities is called___________.
keratin
In albinism ___________________ is lacking.
melanin
Thick sin can be found on the...
palms of feet and hands
What is the function of the skin?
protection, temperature regulation, vitamin D synthesis, excretion
Burns are devastating and debilitating because of loss of fluids and electrolytes from the body. How do physicians estimate the extent of the burn damage associated with such dangerous fluid loss?
rule of nines
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
What is 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)?
stratum basale, stratum spinosum, stratum granulosum, stratum lucidum, stratum corneum
The layer of the epidermis at the exposed surface is the __________.
stratum corneum
The epidermal layer whose cells have stopped dividing and started to produce large amounts of keratin is the_______.
stratum granulosum
As cells are pushed from the deeper portion of the epidermis toward the surface,
they die
The type of burn that injures the hypodermic, deeper tissues, and organs in a...
third degree burn
The dermis is composed of largely of ________________.
dense irregular connective
When the arrector pili muscles contract?
"goose bumps" are formed
A burn that destroys only the superficial cells of the epidermis, such as a mild sunburn, is classified as...
first degree
A condition in which the internal temperature of the human body is at least 3.6 degree F below an internal temperature of 98.6 degree F.
Hypothermia
What is the function of melanin?
It protects DNA from the damaging effects of ultraviolet radiation
Modified and specialized sweat glands that produce milk are called ___________ glands.
Mammary
What is the correct order of the cutaneous membrane?
epidermis, dermis, hypodermis
Through which mechanism does perspiration function in cooling the body?
evaporation
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
The sin may turn orange as a result of _____________ buildup.
carotene
The skin is also called the ____________ membrane.
cutaneous
