chapter 5 test
ABCDE rule
asymmetry, border irregularity, color, diameter, evolving
which type of skin cancer is the most common?
basal cell carcinoma
A victim of an automobile accident goes into shock, which results in decreased blood flow. The victim's skin will
become pale
What will develop when the skin is subjected to excess friction or pressure?
callus
A yellow pigment derived from plants that can impart a yellow color to the skin is
carotene
2 skin diseases caused by viruses
shingles, measles
The layer of epidermis that undergoes mitosis and forms new epidermal cells is the
stratum basale
Which of the following represents the correct order of the layers of the epidermis from the deepest to the most superficial?
stratum basale, stratum spinosum, stratum granulosum, stratum lucidum, stratum corneum
Excessive shedding of this layer of the epidermis of the scalp is responsible for dandruff
stratum corneum
t/f during pregnancy melanin produced is increased
true
t/f the epidermis is nourish by blood vessels located in the dermis
true
A person has very dry, itchy skin. What is the cause?
under active sebaceous glands
this condition involves the development of white patches on the skin caused by the loss of melanocytes
vitiligo
a slight sunburn is an example of a
1st degree burn
Barney sat on a hot camp stove while on a camping trip. The burn was painful and blistered. His burn was what type of burn?
2nd degree
what type of burn appears red and swollen along with pain and blisters?
2nd degree
Which vitamin begins its synthesis in the skin exposed to UV light?
D
Eskimos wear a great deal of clothing and have limited exposure to UV light, but do not suffer from Vitamin D deficiency. A possible explanation is
They get enough vitamin D in their diet of fish and marine mammals
The bluish tinge of skin due to a reduction of oxygen in the blood is called
cyanosis
On coming inside from the cold, students notice that their cheeks are red. This results from
dilation of the blood cells in the dermis of the cheeks
ringworm is an infection of the skin, hair, and nails caused by a
fungus
When the arrector pili muscles contract
goose bumps form on the skin
lead poisoning can be detected by doing an analysis of
hair
The portion of the hair below the surface of the skin is the
hair bulb
You come into the classroom and find the old teacher lying on the floor. Her skin is bluish color. What is probably his problem?
he has a heart or respiratory problem
what is the most common cause of death due to burns?
infection
4 threats that skin protects underlying tissues from?
infection, UV radiation, water loss, frostbite
the dermis
is responsible for most of the skin's structural strength
The skin discoloration most likely to result from liver disease is
jaundice
What protein is found in the nails, hair, and epidermis?
keratin
Delicate unpigmented hairs that cover the fetus in early development are called
lanugo hairs
the activity of apocrine sweat glands
leads to body odor
The white semicircular region at the proximal edge of the nail is the
lunula
Melanin is produced only by
melanocytes
The nail root and the nail body attach to the
nail bed
Adipose tissue in the subcutaneous tissue
serves as a storage site for fat, which can be used for energy
what is associated with the skin?
protection against ultraviolet radiation
Skin color is the result of the
quantity of melanin in the skin
This layer is found only in thick skin
stratum lucidum
Which layer of the epidermis is found in only a few areas in the body?
stratum lucidum
At birth hairs of the scalp, eyelids, and eyebrows are replaced by coarse pigmented hairs called
terminal hairs
what is true about 1st degree burns?
they are somewhat painful, they heal in a few days
