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Integumentary System > Chapter 5 > Flashcards

Chapter 5 Flashcards

0
Q

Epidermis

A

Thin upper layer

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1
Q

Integument

A

Skin. Includes hair nails and excretory glands.

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2
Q

Dermis

A

The under layer

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3
Q

Accessory organs

A

Hair nails and excretory glands

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4
Q

Hypodermis (subcutaneous layer)

A

Fat layer protecting major blood vessels

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5
Q

Functions of integument

A 
Protection
Excretes salts
Maintains body temp
Forms vitamin B
Stores nutrients 
Touch receptors
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6
Q

Causes hardening

A

Keratinocytes

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7
Q

Palms and soles of feet

A

Thick epidermis

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8
Q

Eyelids and belly button

A

Thinnest epidermis

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9
Q

Basale

A

Deepest layer

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10
Q

Basal cell

A

Skins stem cell

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11
Q

Markel cell

A

Sensitive to touch

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12
Q

Melanocytes

A

Brown pigment cells

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13
Q

Spinosum

A

Above basale layer

Cells are still dividing

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14
Q

Langerhans cell

A

Fights infection

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15
Q

Granulosum

A

Cells do not divide

Make keratin

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16
Q

Keratin

A

Protect and harden hair skin and nails

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17
Q

Lucidium

A

Only found in thick areas

Soles of feet and palms

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18
Q

Corneum

A

Surface layer

Lasts 2-3 wks

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19
Q

Gradual evaporation throughout the day

A

Insensible perspiration

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20
Q

Out of glands, depending on activity

A

Sensible perspiration

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21
Q

Caused by epidermal pigments and dermal pigments

A

Skin color

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22
Q

Carotene

A

Orange-yellow

Help w vision. Vitamin A

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23
Q

Melanin

A

Brownish-yellow-black

Protects from UV Rays

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24
Q

Hemoglobin

A

Reddish- pink found in blood and carries oxygen.

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25
Q

Hemoglobin: flushed skin

A

Dialated vessels

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26
Q

Hemoglobin: cyanosis, blue

A

Constricted vessels

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27
Q

When blood vessels expand, you look more red. When blood vessels constrict, you look more blue.

A

Dermal circulation

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28
Q

Contains dermal papilla, sensory neurons and capillaries

A

Superficial papillary

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29
Q

Deeper. Holds structure in place.

A

Reticular layer

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30
Q

Loss of elastin in dermis due to UV exposure

A

Wrinkles

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31
Q

Meissner corpusles

A

Light touch

32
Q

Pacinian corpussles

A

Heavy pressure

33
Q

Hair structure- root

A

Anchors hair to skin

34
Q

Hair bulb

A

Surrounds hair follicle and connects it to blood vessels and nerves

35
Q

Hair shaft

A

Above the skin

36
Q

Cuticle

A

Outer surface

37
Q

Cortex

A

Middle layer with thick layer of keratin

38
Q

Medulla

A

Inner core

39
Q

Straight hair

A

Round follicle

40
Q

Curly hair

A

Flat follicle

41
Q

Lanugo hair

A

1st hair to form in embryo

42
Q

Vellus

A

Fine hair on body. Most common

43
Q

Terminal

A

Heave dark coarse and curly

44
Q

Caused by melanin levels

A

Hair color

45
Q

High levels of melanin

Low levels of melanin

A

Dark

Light

46
Q

Functions of hair

A

Protect
Insulate
Clean air
Sensory

47
Q

Arrector pili muscles

A

Smooth muscles attached to hairs and make them stand on end

48
Q

Hair growth

A

Grows for 2-5 years

49
Q

Club hair

A

Hair at the end of its life

50
Q

Sebaceous glands

A

Oil glands.

51
Q

Lumen

A

Ducts of oil glands

52
Q

Sudoriferous glands

A

Sweat glands

53
Q

Apocrine sweat glands

A

Secretes into hair follicle

54
Q

Eccrine

A

More numerous, smaller

55
Q

Functions of sweat glands

A

Fools body temp
Releases water and electrolytes
Protects against bacteria and viruses

56
Q

Mammary gland

A

Breasts and release milk

57
Q

Ceruminous

A

Release ear wax

58
Q

Dead hardened tightly packed cells

A

Nails

59
Q

Visible part of nail

A

Nail body

60
Q

Free edge

A

Front of nail

61
Q

Skin sides that touch nails

A

Nail folds

62
Q

End of finger tip

A

Hyponychium

63
Q

Non visible back of nail

A

Nail root

64
Q

Cuticle

A

Eponychium

65
Q

Lunula

A

White half moons at base of nail

66
Q

Steps to repair

A

Bleeding
Scab forms
Fibroblasts form new skin tissue
Scab is shed

67
Q

1st degree burn

A

Pain and redness

68
Q

2nd degree

A

Epidermis and dermis damaged

Blisters and pain

69
Q

3rd degree

A

Epidermis dermis and hypodermis damaged

Loss of sensation

70
Q

Erythmema

A

Redness of skin

71
Q

20% burns are dangerous because

A

Fluid loss
Cannot regulate body temp
Bacterial infection likely

72
Q

Sepsis

A

Widespread body and blood infection

73
Q

Autograft

A

Animal skin

74
Q

Xenografts

A

Animal skin

75
Q

Allograft

A

Donor skin

76
Q

Split thickness

A

Epidermis and dermis taken

Top 2

77
Q

Full thickness

A

All 3 layers

Integumentary System (1 decks)

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