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Integumentary System > Chapter 5 > Flashcards

Chapter 5 Flashcards

(78 cards)

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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
Hemoglobin
Reddish- pink found in blood and carries oxygen.
25
Hemoglobin: flushed skin
Dialated vessels
26
Hemoglobin: cyanosis, blue
Constricted vessels
27
When blood vessels expand, you look more red. When blood vessels constrict, you look more blue.
Dermal circulation
28
Contains dermal papilla, sensory neurons and capillaries
Superficial papillary
29
Deeper. Holds structure in place.
Reticular layer
30
Loss of elastin in dermis due to UV exposure
Wrinkles
31
Meissner corpusles
Light touch
32
Pacinian corpussles
Heavy pressure
33
Hair structure- root
Anchors hair to skin
34
Hair bulb
Surrounds hair follicle and connects it to blood vessels and nerves
35
Hair shaft
Above the skin
36
Cuticle
Outer surface
37
Cortex
Middle layer with thick layer of keratin
38
Medulla
Inner core
39
Straight hair
Round follicle
40
Curly hair
Flat follicle
41
Lanugo hair
1st hair to form in embryo
42
Vellus
Fine hair on body. Most common
43
Terminal
Heave dark coarse and curly
44
Caused by melanin levels
Hair color
45
High levels of melanin Low levels of melanin
Dark Light
46
Functions of hair
Protect Insulate Clean air Sensory
47
Arrector pili muscles
Smooth muscles attached to hairs and make them stand on end
48
Hair growth
Grows for 2-5 years
49
Club hair
Hair at the end of its life
50
Sebaceous glands
Oil glands.
51
Lumen
Ducts of oil glands
52
Sudoriferous glands
Sweat glands
53
Apocrine sweat glands
Secretes into hair follicle
54
Eccrine
More numerous, smaller
55
Functions of sweat glands
Fools body temp Releases water and electrolytes Protects against bacteria and viruses
56
Mammary gland
Breasts and release milk
57
Ceruminous
Release ear wax
58
Dead hardened tightly packed cells
Nails
59
Visible part of nail
Nail body
60
Free edge
Front of nail
61
Skin sides that touch nails
Nail folds
62
End of finger tip
Hyponychium
63
Non visible back of nail
Nail root
64
Cuticle
Eponychium
65
Lunula
White half moons at base of nail
66
Steps to repair
Bleeding Scab forms Fibroblasts form new skin tissue Scab is shed
67
1st degree burn
Pain and redness
68
2nd degree
Epidermis and dermis damaged | Blisters and pain
69
3rd degree
Epidermis dermis and hypodermis damaged | Loss of sensation
70
Erythmema
Redness of skin
71
20% burns are dangerous because
Fluid loss Cannot regulate body temp Bacterial infection likely
72
Sepsis
Widespread body and blood infection
73
Autograft
Animal skin
74
Xenografts
Animal skin
75
Allograft
Donor skin
76
Split thickness
Epidermis and dermis taken | Top 2
77
Full thickness
All 3 layers

Integumentary System (1 decks)

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