Integumentary Scantron Part 2

Front 1

innermost epidermal layer; single layer of cuboidal cells; in contact with dermis mitotically active.

Back 1

Stratum germinativum

Front 2

second layer from the bottom consists of 8-10 layers of cells, keratinocytes are bound together by desmsosomes

Back 2

Stratum Spinosum

Front 3

AKA grainy layerThird layer from the bottom. consists of 3-5 layers of keratinocytes. Most cells in layer have stopped dividing.

Back 3

Stratum granulosum

Front 4

AKA clear layer cells in this layer are flat, densely packed and filled with keratin

Back 4

Stratum lucidum

Front 5

surface layer- 15-30 layers of keratinized cells, dead cells are connected tightly by desmosomes

Back 5

Stratum corneum

Front 6

Heavily abraded body surfaces (palms of hands and soles of feet) may be covered by this, formed by five layers of keratinocytes

Back 6

thick skin

Front 7

formed by four layers of keratinocytes ( most abundant epithelial cells. Covers most of the body

Back 7

thin skin

Front 8

At the base of the root; connective tissue containing capillaries and nerves

Back 8

hair papilla

Front 9

surround hair papilla

Back 9

hair bulb

Front 10

contains flexible soft keartin

Back 10

medulla

Front 11

surrounds the medulla; contains hard keratin; gives hair its stiffness

Back 11

cortex

Front 12

a layer of hard keratin that coats the hair

Back 12

cuticle

Front 13

extends from the hair bulb to halfway to the skin surface

Back 13

root hair plexus

Front 14

can erect the hairs; stimulation may result from fear, rage, cold (goose bumps)

Back 14

arrector pilli muscles

Front 15

variations result from differences in structure and variations in melanocytes produced pigments

Genetically determined

hormonal and enviromental factors can affect your hair's condition

Back 15

hair color

Front 16

large sebaceous glands that empty directly onto the surface of the epidermis; located on face, back, chest, nipples and male sex organs

Back 16

sebacious follicles

Front 17

blood supply and pigment composition and concentration (amounts of carotene and melanin)

Back 17

What the color of the epidermis depends on

Front 18

fat distribution in men

Back 18

neck, arm, lower back, over the buttocks

Front 19

a lack of pigment

air bubbles in the medulla of the hair shaft

Back 19

white hair results from

Front 20

Epidermis thins prone to injury and skin infection

Vitamin D3 production declines-more sensitive to sun exposure

Glandulars activities decline- they overheat easily

Reduced blood supply to the dermis

hair follicles stop functioning or produce thinner hairs and gray or white hairs

Dermis thins and elastic fiber network decrease in size it causes sagging and wrinkling

secondary sexual characteristics in hair and body fat distribution begin to fade

skin repairs are cause skin infections

Back 20

effects of age on the integumentary system

Front 21

Why are lines of cleavage important to surgeon?

Back 21

a cut parallel to lines of cleavage will remain closed

a cut perpendicular to lines of cleavage will remain open

Front 22

Sebaceous glands and apocrine sweat glands are controlled by the autonomic nervous system; if one is "turned on" they all are "turned on"

Back 22

control of glandular secretions

Front 23

considerable degree of functional independence (does not involve nervous or endocrine system)

Back 23

Integument system shows a

Front 24

fat distribution in women

Back 24

breasts, buttocks, hips and thighs