with 100% correct answers 2025.
What is one reason it is important for cosmetologists to understand the structure and
function of skin? - Correct AnswerCosmetologists will be able to give their clients the
best beauty advice
The outermost and thinnest layer of skin is the... - Correct Answerepidermis
What is the function of the stratum corneum? - Correct AnswerIt protects the tissue
beneath it from infection, dehydration, and other possible negative effects
Which layer of the dermis connects the dermis to the epidermis? - Correct
Answerdermal/epidermal junction
Nerve fibers that convey impulses from the spinal cord to muscles or glands are called
___ nerve fibers. - Correct AnswerMotor
The tiny grains of pigment deposited into cells of the epidermis and dermis are called... -
Correct AnswerMelanin
A person with very fair skin has less activity in the... - Correct AnswerMelanocytes
What does broad-spectrum sunscreen do? - Correct AnswerIt 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? -
Correct AnswerIt is determined by a combination of internal factors, such as melanin
produced, and external factors, such as sun exposure
Your client has rosy skin and red hair. What explains this hair color and skin pigment? -
Correct AnswerThe client has a pheomelanin dominance
Both collagen and elastin are mostly composed of... - Correct Answerprotein
What do healthy collagen fibers allow the skin to do? - Correct AnswerThey allow the
skin to stretch and contract
What causes elastin and collagen to weaken over time? - Correct Answergravity
What is the primary difference between collagen and elastin? - Correct AnswerCollagen
gives skin its form, whereas elastin allows skin to be flexible
Your 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.