Chapter 4 A (The Integumentary System) Flashcards

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1
Q

apocrine glands

A

glands that appear during and after puberty and secrete sweat, as from the armpits

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2
Q

ceruminous glands

A

glands that secrete a waxy substance on the surface of the ear

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3
Q

collagen

A

major protein substance that is tough and flexible and that forms connective tissue in the body

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4
Q

corium/ dermis

A

layer of skin beneath the epidermis containing blood vessels, nerves and some glands

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5
Q

eccrine glands

A

sweat glands that occur all over the body, except where the apocrine glands occur

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6
Q

epidermis

A

outer portion of the skin containing several strata

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7
Q

exocrine glands

A

glands that secrete through ducts towards the outside of the body

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8
Q

hair follicle

A

tubelike sac in the dermis out of which the hair shaft develops

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9
Q

hypodermis

A

subcutaneous skin layer, below the dermis

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10
Q

integument

A

skin and all the elements that are contained within and arise from it

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11
Q

keratin

A

hard, horny protein that forms nails and hair

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12
Q

lunula

A

half-moon shaped area at the base of the nail-plate

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13
Q

melanin

A

pigment produced by melanocyte that determines skin, hair, and eye color

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14
Q

melanocyte

A

cell in the epidermis that produces melanin

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15
Q

nail

A

thin layer of keratin that covers the distal portion of fingers and toes

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16
Q

papillary layer

A

thin sublayer of the dermis containing small papillae (nipple like masses)

17
Q

reticular layer

A

bottom sublayer of the dermis containing reticula (network of structures with connective tissue between)

18
Q

sebaceous glands

A

glands in the dermis that ope to hair follicles and secrete sebum

19
Q

sebum

A

oily substance, usually secreted into the hair follicle

20
Q

squamous epithelium

A

flat, scaly layer of cells that makes up the epidermis

21
Q

stratified squamous epithelium

A

layers of epithelial cells that make up the strata of epithelium of the epidermis

22
Q

stratum

A

layer of tissue, especially layer of skin

23
Q

stratum corneum

A

top sublayer of the epidermis

24
Q

stratum germinativum

A

bottom sublayer of the epidermis

25
Q

striae

A

stretch marks in the collagen fibers of the dermis layer

26
Q

subcutaneous layer

A

bottom layer of the skin containing fatty tissue

27
Q

sweat glands

A

coiled glands of the skin that secrete perspiration to regulate body temperature and excrete waste products