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