cos chapter 3

Question 1

what does elastin do for the skin

Answer 1

it gives the skin its flexibility and elasticity

Question 2

the ______ is the outer most and thinnest layer of the skin and is made up of five layers stratum corneum-stratum lucidum-stratum granulosum-stratum spinosum and stratum greminativum

Answer 2

the epidermis

Question 3

the skin gets it strength form and flexibility from two fibers found in within the___

Answer 3

dermis

Question 4

it gives the body smoothness and contour

Answer 4

subcutaneous tissue

Question 5

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

Answer 5

motor nerve fibers

Question 6

they control the flow of sebum to the surface of the skin

Answer 6

secretory nerve fibers

Question 7

the ___ is the deepest layer of the dermis that supplies the skin with oxygen and nutrients

Answer 7

reticular layer

Question 8

sensation

Answer 8

one of the six principal functions of the skin

Question 9

skin color whether fair medium or dark depends primarily on

Answer 9

melanin

Question 10

glands that are connected to the hair follicles and secrete sebum are called

Answer 10

sebaceous glands

Question 11

____ is a fibrous protein that is also the principal component of the skin and nails

Answer 11

keratin

Question 12

____ consist of a secretory coil and a tube like sweat duct that ends at the skins surface to form the sweat pore

Answer 12

sudoriferous glands

Question 13

difference in genetic skin colors among people due to

Answer 13

the amount of melanin activated in the skin and the way it is destituted

Question 14

sebum

Answer 14

fatty or oily secretion that lubricates the skin and preserves the softness of the hair

Question 15

what role does the barrier function play a role in the skin

Answer 15

it keeps the skin moist by preventing water evaporation

Question 16

___ is a type of melanin red to yellow in color

Answer 16

pheomelanin

Question 17

excretion

Answer 17

perspiration from the sudoriferous glands is expelled through the skin

Question 18

what will most likely slow the weakening of collagen and elastin fibers and help the skin look younger longer

Answer 18

keeping the skin free of disease

Question 19

the ___ is a protective barrier made up of sebum lipids sweat and water that form a hydrolipidic film to protect the skin from drying out from exposure to external factors that could damage it

Answer 19

acid mantle

Question 20

____ refers to the tiny grains of pigment deposited into cells in the stratum germinativum layer of the epidermis and papillary layers of the dermis

Answer 20

melanin

Question 21

___ is the skins underlying layer and extends to form the subcutaneous tissue

Answer 21

the dermis

Question 22

__ excrete perspiration and detoxify the body by excreting excess salt and unwanted chemicals

Answer 22

sudoriferous glands

Question 23

__ is a medical branch of science that deals with the study of the skin and its nature structure function disease and treatment

Answer 23

dermatology

Question 24

emotional stress and hormone imbalances is likely to increase ___

Answer 24

the flow of sebum