Ch. 7 Skin Structure, Growth, & Nutrition

Question 1

The medical branch of science that deals with the study of the skin and its nature, structure, functions, diseases, and treatment is called:

Answer 1

dermatology

Question 2

The skin varies in thickness and is found to be thinnest on the:

Answer 2

eyelids

Question 3

The skin is the thickest on the:

Answer 3

palms and soles

Question 4

The outermost layer of the skin is called the:

Answer 4

epidermis

Question 5

The horny layer of the skin, which contains scale-like cells that are continually shed, is called the:

Answer 5

stratum corneum

Question 6

The clear layer of the epidermis that consists of small, transparent cells through which light can pass is called the:

Answer 6

stratum lucidum

Question 7

The layer of the skin that is composed of several layers of different-shaped cells and contains dark pigment is called the:

Answer 7

stratum germinativum

Question 8

The underlying or inner layer of the skin that is also called the corium, cutis, or true skin is the:

Answer 8

dermis

Question 9

The dermis is made up of two layers, which are the:

Answer 9

papillary and reticular

Question 10

The fatty layer found beneath the dermis is described as:

Answer 10

subcutaneous

Question 11

Nerve fibers that are distributed to the arrector pili muscles attached to hair follicles are:

Answer 11

motor nerve fibers

Question 12

Nerve fibers that react to heat, cold, touch, pressure, and pain are:

Answer 12

sensory nerve fibers

Question 13

Nerve fibers that are distributed to the sweat and oil glands of the skin and regulate the excretion of perspiration and control the flow of sebum to the skin surface are:

Answer 13

secretory nerve fibers

Question 14

Nerve endings are most abundant in the:

Answer 14

fingertips

Question 15

As we age, elastin fibers naturally weaken, causing a loss of:

Answer 15

elasticity

Question 16

The skin contains two types of duct glands that extract materials from the blood to form new substances. They are:

Answer 16

sudoriferous and sebaceous glands

Question 17

Sweat glands consist of a coiled base and a__________duct that terminates at the skin surface to form the sweat pore.

Answer 17

tube-like

Question 18

The principle functions of the skin are protection, sensation, heat regulation, and:

Answer 18

excretion, secretion, and absorption

Question 19

_________play an important role in the skin’s health, often aiding in healing, softening, and fighting diseases of the skin.

Answer 19

vitamins

Question 20

The amount of__________needed by an individual varies depending on body weight and the level of daily physical activity.

Answer 20

water