Chapter 5 - The Integumentary System Notes Flashcards Preview

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Flashcards in Chapter 5 - The Integumentary System Notes Deck (64)
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1

the integumentary system consists of

skin
hair
nails
glands

2

function of skin

protects
helps regulate body temp
produces vitamin d
detects stimuli

3

skin is the

epidermis

4

thick skin has _ layers

5

5

where is thick skin found

palms of hands and soles of feet

6

thin skin has

4 layers

7

what is word for layer

stratum

8

what are the 5 layers of skin (basement to exterior)

germinativum
spinosum
lucidum
corneum

9

what is function of skin and membranes

protection of underlying tissue
excretion
regulation of normal body temp
synthesis of vit D in response to UV light
storage of nutrients
detection of touch, pressure, pain, and temp

10

_____ is the transformation of living cells of the stratum corneum to protective cell layers that contain keratin

keratinization

11

keratinized cells are filled with keratin and have a _______ both of which contribute to structural strenght

protein envelope

12

keratinized cells are alos held together by many

desmosomes

13

intercellular spaces (in keratinized cells) are filled with _______ that contribute to teh impermeability of teh epidermis to water

lipids

14

____ is found in skin and the inside of hair whereas _____ occurs in nails and the outside of hairs.

soft keratin
hard keratin

15

hard keratin makes cells

more durable

16

________ such as those on the palms and soles, improve our gripping ability and increase the skin's sensitivity.

epidermal ridges

17

epidermal ridges interlock with the underlying _______

dermis

18

__________ are part of the immune system

langerhans cells

19

_______ provide inof about objects that touch the skin

merkel cells

20

the color of the skin depends on 2 factors

epidermal pigmentation
dermal circulation

21

People who lack ______ are very pale

pigment melanin

22

the epidermis contains

carotene
melanin

23

_____ is found in orange vegetables.

carotene

24

carotene is found often in

stratum corneum

25

carotene can be converted to

vit A

26

what is vitamin A needed for

photocreptors of the eye
normal epithelial tissue

27

melanin

brown pigment that gives skin a dark color

28

______ produces melanin

melanocytes

29

where is melanin produced

inside melanosomes

30

_____ transfers melanin to keratinocytes

melanocytes