Chapter 3 Skin Structure & Growth

_____ is fibrous protein that is also the principal component of the skin, hair, and nails.

_____ is a fibrous, connective tissue made from protein that gives the skin form & strength.

Cosmetologist should have a thorough understanding of skin structure & growth because ______.

Sudoriferous glands consist of a secretory coil & tubelike sweat duct that ends at the skin surface to form sweat pore

Tiny grains of pigment deposited into cells in the stratum germinativum layer of epidermis & papillary layers of dermis

Protective barrier that forms hydrolipidic film to protect the skin from drying out & from exposure to external factors

Differences in genetic skin color among people are due to ____.

Daily use of broad-spectrum sunscreen with a SPF of 15 or higher can ____.

Glands that are connected to the hair follicles & secrete sebum are called ____.

Which of the following is one of the six principal functions of the skin?

Which actions is most likely to slow the weakening of collagen & elastin fibers & help the skin look younger longer?

___ excrete perspiration & detoxify the body by excreting excess salt & unwanted chemicals.

Which of the following is a function of melanin?

The dermis is the skin's underlying layer and extends to from the subcutaneous tissue

Which of the following is a fatty or oily secretion that lubricates the skin & preserves the softness of the hair?

Which of the following is a type of melanin that is dark brown to black in color?

The skin gets in strength, form, & flexibility from 2 protein fibers found within the _____.

A physician who specializes in diseases & disorders of the skin, hair, & nails is known as a _______.

Which of the following roles does the barrier function play in the skin?

When skin's blood & sudoriferous glands make necessary adjustments to help cool down the body is a function of ___

Which of the following is a function of subcutaneous tissue?

____ exclusively transmit impulses from the brain or spinal cord to the muscles or glands

Nerve fibers that send messages to the central nervous system & brain to react to heat, cold, touch, pressure & pain.

Identify a factor that weakens collagen.

_____ is a type of melanin that is red to yellow in color.

Skin color-whether fair, medium, or dark-depends primarily on _____.

Which of the following statements is true of elastin?

The ____ is the deeper layer of the dermis that supplies the skin with oxygen and nutrients

Which of the following factors is most likely to increase the flow of sebum?

A medical branch of science that deals with the study of skin & its nature, structure, functions, diseases & treatment.

Perspiration from the sudoriferous glands is expelled through the skin. Which functions of the skin does this relate to?

The ____ is the outermost & thinnest layer of the skin & is made up of 5 layers.

Which of the following statements is true of secretory nerve fibers?