Chapter 3 Physiology and Histology of the Skin

Question 1

Why is UVB radiation also known as burning rays?

Answer 1

UVB wavelengths cause cancer as well as burning of the skin

Question 2

What is not an element of the skin’s acid mantle?

Answer 2

Blood

Question 3

What causes injured skin to restore itself to its normal thickness?

Answer 3

Hyperproduction of cells

Question 4

Histology is also known as _________.

Answer 4

Microscopic anatomy

Question 5

Which of the following is not a characteristic of healthy skin?

Answer 5

Slightly rough

Question 6

What are most abundant in the fingertips, as opposed to other parts of the body?

Answer 6

Sensory nerve fibers

Question 7

What is the average internal temp of the body in degrees Fahrenheit?

Answer 7

98.6

Question 8

Why does the body perspire?

Answer 8

To protect us from overheating

Question 9

What are follicles?

Answer 9

Tubelike openings in the epidermis

Question 10

What is glycation?

Answer 10

The binding of a protein molecule to a glucose molecule.

Question 11

What are hair papillae?

Answer 11

Cone-shaped elevations at the base of the follicle

Question 12

Where in the body is hyaluronic acid found?

Answer 12

Skin

Question 13

What is hydrolipidic film?

Answer 13

Oil-water balance that protects the skin’s surface

Question 14

What is the acid mantle?

Answer 14

Protective layer of lipids and secretions on the skin’s surface

Question 15

Where in the body are the coiled structures known as apocrine glands found?

Answer 15

Underarm and genital areas

Question 16

What is the result of the contraction of the arrector pili muscle?

Answer 16

Goosebumps

Question 17

What are ceramides?

Answer 17

Glycolipid materials

Question 18

What is collagen?

Answer 18

Fibrous tissue made from protein

Question 19

What are corneocytes?

Answer 19

Hardened keratinocytes

Question 20

What are membranes of ridges and grooves that attach to the epidermis?

Answer 20

Dermal papillae

Question 21

How fast does hair grow?

Answer 21

Six inches per year

Question 22

What is oil that provides protection for the epidermis from external factors and that lubricates both the skin and hair?

Answer 22

Sebum

Question 23

What is the formal name for the horny layer?

Answer 23

Stratum corneum

Question 24

What is the technical term for the nail?

Answer 24

Onyx

Question 25

What is true of the stratum corneum?

Answer 25

It is the outermost layer of the skin

Question 26

What happens in the stratum germinativum?

Answer 26

Cells divide

Question 27

What happens in the stratum granulosum?

Answer 27

Keratin is produced

Question 28

What part of the skin provides a protective cushion and energy storage for the body?

Answer 28

Subcutaneous layer

Question 29

What are the glands that excrete perspiration, regulate body temperature, and detoxify the body?

Answer 29

Sudoriferous

Question 30

What is telangiectasia?

Answer 30

Aging

Question 31

What causes transepidermal water loss?

Answer 31

Evaporation

Question 32

What is the dermis?

Answer 32

Support layer below the epidermis

Question 33

Which nerves react to heat, cold, pain, pressure, and touch?

Answer 33

Sensory

Question 34

What protein fiber is found in the dermis and gives skin its flexibility and firmness?

Answer 34

Elastin

Question 35

What hormone stimulates cells to reproduce and heal?

Answer 35

Epidermal growth factor (EGF)

Question 36

What is true of the epidermis?

Answer 36

It is the outermost layer of the skin

Question 37

What comprises about 50 to 70 percent of the skin?

Answer 37

Water

Question 38

What causes the body to produce its own vitamin D?

Answer 38

Exposure to the sun

Question 39

What is not one of the six primary functions of the skin?

Answer 39

Reflection

Question 40

When do free radicals produce more free radicals?

Answer 40

While causing oxidation reactions

Question 41

What function do the sudoriferous glands perform?

Answer 41

Excrete perspiration. regulate body temp, and detoxify the body

Question 42

Eccrine glands are ________.

Answer 42

Sweat glands

Question 43

___________ are basic material and building blocks of the body's tissues.

Answer 43

Proteins

Question 44

What are sweat glands that are found all over the body with openings on the skin's surface through pores and that are not attached to hair follicles?

Answer 44

Eccrine

Question 45

What function do sebaceous glands perform?

Answer 45

Protect the surface of the skin

Question 46

Estheticians who specialize in the health and beauty of skin are sometimes referred to as

Answer 46

Technicians

Question 47

Estheticians should be able to interpret the effects of these factors that influences skin heath and appearance?

Answer 47

Hormones, nutrition, and ultraviolet damage

Question 48

What is an esthetician's primary focus?

Answer 48

Preserve the skin, protect the skin, and nourish the skin

Question 49

What does scar tissue lack?

Answer 49

Hair and sweat glands

Question 50

What percentage of hard B-keratin does hair contain?

Answer 50

90 percent

Question 51

How is B-keratin different from A-keratin?

Answer 51

It has lower moisture and fat than A-keratin.

Question 52

If a person has a purple or bluish tone under their fingertips, then they most likely have this condition

Answer 52

Telangiectasia

Question 53

Which nerves convey impulses from the brain or spinal cord to the muscles or glands?

Answer 53

Sensory