chapter 3 review Flashcards
What is one reason it is important for cosmetologists to understand the structure and function of skin?
Cosmetologists will be able to give their clients the best beauty advice.
The outermost and thinnest layer of the skin is the _________.
Epidermis
What is the function of the stratum corneum?
It protects the tissue beneath it from infection, dehydration, and other possible negative effects.
Which layer of the dermis connects the dermis to the epidermis?
dermal/epidermal junction
Nerve fibers that convey impulses form the spinal cord to muscles or glands are called _______ nerve fibers.
motor
The tiny grains of pigment deposited into cells of the epidermis and dermis are called _______.
melanin
A person with very fair skin has less activity in the _________.
melanocytes
What does a broad-spectrum sunscreen do?
It protects the skin from both UVA and UVB radiation from the sun.
Which sentence is the best way to explain how a person’s skin color is determined?
It is determined by a combination of internal factors, such as. melanin produced, and external factors, such as sun exposure.
You client has rosy skin and red hair. What explains this hair color and skin pigment?
The client has a pheomelanin dominance.
Both collagen and elastin are mostly composed of _______.
protein
What do healthy collagen fibers allow the skin to do?
They allow the skin to stretch and contract.
What causes elastin and collagen to weaken over time?
gravity
What is the primary difference between collagen and elastin when it comes to the function of each one?
Collagen gives skin its form , whereas elastin allows skin to be flexible?
You client works daily in the sun and has noticed some changes to the skin. The client asks for your advice for protecting the skin and avoiding any long term skin damage. What advice would you give?
The client should wear a broad-spectrum sunscreen and moisturize daily.
Which of the following is an important function of sudoriferous glands?
They regulate body temperature and help eliminate waste products from the body.
What is one way skin protects the body from pathogens?
The skin’s pH level protects the body from pathogens.
When clients react to temperature, they are exhibiting the skin’s ______ function.
sensation
The skin’s absorption function allows the skin to absorb some ingredients ______.
between the cells and through the hair follicles
What is one way the skin’s secretion function helps the body?
It keeps skin soft.
A physician who specializes in diseases and disorders of the skin, hair and nails is ________.
a dermatologist
Which of the following correctly identifies the layers of skin and fat from the outermost layer to the innermost layer?
epidermis, dermis, subcutaneous
Fatty tissue found below the dermis is ______ tissue.
subcutaneous
Which nerve fibers are distributed to the arrector pili muscles attached to the hair follicles?
motor nerve fibers
The two types of pigment produced in an individual are __________.
eumelanin and pheomelanin
Skin gets its strength, form, and flexibility __________.
collagen and elastin
the sudoriferous glands excrete perspiration, detoxify the body, and _________.
regulate body temperature
A fatty or oily secretion that lubricates the skin and reserves the softness of the hair is______.
sebum
The acid mantle is the protective barrier made up of sebum, lipids, sweat, and ________.
water
______ fibers react to heat cold, touch, pressure, and pain.
Sensory nerve
