Skin structure and growth

30問 • 2年前

問題一覧

Wanda's skin has recently been experiencing a significant amount of new wrinkles. What could explain these new wrinkles?

Wanda has recently been working at an outdoor job that requires frequent exposure to very cold temperatures, which weakens collagen fibers

Which two structures give the skin strength, form, and flexibility?

collagen and elastin

Which nerve fibers in the skin stimulate muscles?

motor nerve fibers

All of the following are skin functions EXCEPT ____.

add necessary body weight to maintain good health

All of the following are reasons cosmetologists should understand skin structure and growth EXCEPT:

Diagnosing and providing treatment for abnormal skin conditions, illnesses, or diseases requires knowledge of skin structure and growth.

Which sentence best describes the difference in the functions of pheomelanin and eumelanin in the skin?

A person with predominantly pheomelanin tends to have rosy skin, whereas a person with predominantly eumelanin tends to have cooler skin tones.

Oil glands that are connected to hair follicles are also called ____.

sebaceous glands

Which sentence best defines melanin?

These tiny grains of pigment are produced by melanocytes in the stratum germinativum.

The fibrous protein that gives skin its flexibility and helps skin regain its shape after being expanded is _____.

elastin

What is a fibrous protein that is the principal component of hair and nails?

keratin

Water is the number one nutrient of the body and composes what percentage of the body's skin?

50 to 70 percent

What gives the body smoothness and contour while providing a protective cushion for the skin?

subcutaneous tissue

Which example illustrates the skin's heat regulation function?

Sudoriferous glands excrete perspiration.

The melanin produced by the body that is red to yellow in color is _____.

pheomelanin

_____ helps protect sensitive cells from UV rays.

Melanin

Nerve fibers that send messages to the central nervous system and brain to react to heat, cold, touch, pressure, and pain are called ____.

sensory nerve fibers

A broad-spectrum sunscreen is one that ____.

has been shown to protect against UVA and UVB radiation from the sun

Lately, a client has noticed body sweat much more than typical in the past. Which situation could explain this increased perspiration?

The client is taking a new prescription drug.

The medical branch of science that deals with the study of the skin, its functions, and diseases is _____.

dermatology

What is the function of sudoriferous glands?

to excrete sweat to regulate body temperature and eliminate waste products

What is the underlying or inner layer of the skin?

dermis

Which response describes a cause of wrinkles or sagging skin?

collagen fibors lose their strength due to exposure to UV light

Which is a reasonable prediction of an outcome for a client who does not use a broad-spectrum sunscreen with a sun protection factor (SPF) of 15 or higher?

Collagen and elastin fibers will weaken, and the client's skin will age prematurely.

All of the following describe a defense mechanism the skin uses to protect the body EXCEPT:

Hair follicles pull bacteria from the surface of the skin.

Water loss through perspiration is an example of which function of the skin?

excretion

What is the function of sebaceous glands?

to secrete oil to lubricate the skin

The layer of skin that is seen and treated by the cosmetologist is the _____.

stratum corneum

Which type of nerve fibers carry impulses from the brain to the muscles?

motor

Which layer of the epidermis forms unique fingerprints and footprints and is only located on the palms of the hands, the soles of the feet, and the digits?

stratum lucidum

What is the function of elastin?

It gives the skin flexibility and elasticity.

Chemistry and chemical

Gia Taylor · 50問 · 2年前

Chemistry and chemical