RB CH 03: Skin Structure and Growth

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.

• Cosmetologists will be able to diagnose a client’s abnormal skin condition.

• Cosmetologists will be able to make the best hairstyle decisions.

• Cosmetologists will be able to improve a client’s hair condition.

The outermost and thinnest layer of the skin is the ________.

• dermis

• epidermis

• subcutaneous layer

• papillary layer

What is the function of the stratum corneum?

• It forms unique fingerprints and footprints.

• It is responsible for the growth of the epidermis.

• It protects the tissue beneath it from infection, dehydration, and other possible negative effects.

• It creates the skin’s sensitivity to touch, heat and cold, and pressure.

Which layer of the dermis connects the dermis to the epidermis?

• reticular layer

• papillary layer

• horny layer

• dermal/epidermal junction

Nerve fibers that convey impulses from the spinal cord to muscles or glands are called (a)   nerve fibers.

• motor

• secretory

• sensory

• spinal

The tiny grains of pigment deposited into cells of the epidermis and dermis are called (a)   .

• Melanin

• Carotene

• Hemoglobin

• Collagen

A person with very fair skin has less activity in the (a)   .

• collagen cells

• elastin cells

• melanocytes

• sudoriferous glands

What does a broad-spectrum sunscreen do?

• It protects the skin from sun exposure by boosting the skin's production of melanin.

• It protects the skin from sun exposure by absorbing UVA and UVB radiation.

• It protects the skin from sun exposure by blocking the production of melanin.

• 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 only by internal factors, such as how much melanin a person's melanocytes produce.

• It is determined by a combination of internal factors, such as melanin produced, and external factors, such as sun exposure.

• It is determined only by external factors, such as how much sun exposure the person has on a regular basis.

• It is determined only by the person's genetic makeup.

Your client has rosy skin and red hair. What explains this hair color and skin pigment?

• The client has a eumelanin dominance.

• The client has had a great deal of lifetime sun exposure.

• The client has a pheomelanin dominance.

• The client has very few melanocytes.