Skin
All of the following are reasons cosmetologists should understand skin structure and growth
D - Diagnosting and providing treatment for abnormal skin conditions, illnesses,o r diseases require knowledge of skin structure and growth
Which example illustrates the skin's heat regulation function
C - Sudoriferous glands excrete perspiration
___ helps protect sensitive cells from UV rays
D - Melanin
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
A - collagen and elastin fibers will weaken, and the client's skin will age prematurely
Which sentence best describes the difference in the functions of pheomelanin and eumelanin in the skin
B - A person with predominantly pheomelanin tends to have rosy skin, whereas a person with predominantly eumelanin tends to have cooler skin
What is the function of sebaceous glands
A - To secrete oil to lubricate the skin
Water loss through perspiration is an example of which function of the skin
A - excretion
which sentence best defines melanin
These tiny grains of pigment are produced by melanocytes in the stratum germinativum
The medical branch of science that deals with the study of the skin, its functions, and diseases is ___
B - Dermatology
A broad-spectrum sunscreen is one that
D - Has been shown to protect against UVA and UVB radiation from the sun
Which nerve fibers in the skin stimulate muscles
C - Motor nerve fibers
The layer of skin that is seen and treated by the cosmetologist is the ____
A - stratum corneum
Which response describes a cause of wrinkles or sagging skin
C - Collagen fibers lose their strength due to exposure to UV light
Which two structures give the skin strength, form, and flexibility
B - Collagen and elastin
Lately, a client has noticed body sweat much more than typical in the past. Which situation could explain this increased perspiration
B - the client is taking a new prescription drug
C - 50 to 70 percent
What is the function of sudoriferous glands
D - To excrete sweat to regulate body temperature and eliminate waste products
Which is the function of elastin
C - It gives the skin flexibility and elasticity
Nerve fibers that send messages to the central nervous system and brain to react to heat, cold, touch, pressure, and pain are called ___
A - Sensory nerve fibers
what gives the body smoothness and contour while providing a protective cushion for the skin
C - Subcutaneous tissue
All of the following describe a defense mechanism the skin uses to protect the body except
D - Hair follicles pull bacteria from the surface of the skin
What is a fibrous protein that is the principal component of hair and nails
A - Keratin
which layer of the epidermis forms unique fingerprints and footprints and is only located on the palms of the hand, the soles of the feet, and the digits
A - Stratum Lucidum
The melanin produced by the body that is red to yellow in color is ___
B - Pheomelaninn
Wanda's skin has recently been experiencing a significant number of new wrinkles. What could explain these new wrinkles
A - Wanda has recently been working at an outdoor job that requires frequent exposure to very cold temperatures, which weekends collagens fibers.