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Ana > Ch 4 Lec 1 Integumentary System > Flashcards

Ch 4 Lec 1 Integumentary System Flashcards

1
Q

2 components of integumentary system

A

cutaneous membrane, accessory structures

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2
Q

2 parts of cutaneous membrane

A

epidermis, dermis

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3
Q

hair nails and glands are part of the blank component of integ system

A

accessory structures

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4
Q

Three functions of integ system

A

protect deeper tissues, aid in heat regulation, make vitamin d, aid in excretion of urea and uric acid

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5
Q

stratified squamous epithelium makes up the blank

A

epidermis

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6
Q

epidermis lacks blank

A

blood vessels

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7
Q

outer most layers of epidermis are blank

A

dead

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8
Q

four cell types of epidermis

A

keratinocytes, melanocytes, langerhan, merkel

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9
Q

90 percent of epidermal cells and they provide protection

A

keratinocytes

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10
Q

8 percent of epidermal cells

A

melanocytes

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11
Q

epidermal cell type formed from bone marrow and is part of immune response

A

langerhan cells

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12
Q

epidermal cell type that is in the deepest layer and form touch receptor with sensory neuron

A

merkel cells

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13
Q

stem cells divide to produce blank at the basal blank

A

keratinocytes, lamina

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14
Q

keratinocytes slowly blank when pushed up toward the surface

A

die

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15
Q

keratinization takes this long unless removed by abrasion

A

4 weeks

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16
Q

5 layers of epidermis

A 
stratum germinativum
stratum spinosum
stratum granulosum
stratum lucidum
stratum corneum
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17
Q

Deepest single layer of cells

A

stratum germinativum

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18
Q

Cells attached to each other & to basal lamina by these two things in stratum germinativum

A

desmosomes, hemidesmosomes

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19
Q

8 to 10 cell layers held together by desmosomes

During slide preparation, cells shrink and look spiny

A

stratum spinosum

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20
Q

3 - 5 layers of flat dying cells Show nuclear degeneration

A

stratum granulosum

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21
Q

stratum granulosum contain dark staining blank granules that release lipid that repels water

A

keratohyalin

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22
Q

Seen in thick skin on palms & soles of feet only

Three to five layers of clear, flat, dead cells

A

stratum lucidum

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23
Q

25 to 30 layers of flat dead cells filled with keratin and surrounded by lipids

A

stratum corneum

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24
Q

stratum corneum cells are continuously blank

A

shed

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25
friction of stratum corneum stimulates blank
callus formation
26
Palmer & planter surface About 30 layers of S. corneum All 5 layers
thick skin
27
Rest of body surfaces Fewer layers of S. corneum No S. lucidum
thin skin
28
forms ridges that extend into the dermis
stratum germinativum
29
blank yolk means good chicke, blank yolk means bad chicken
orange, yellow
30
these increase area of contact for better grip
epidermal ridges
31
this is produced in the epidermis by these cells
melanin, melanocytes
32
everyone has the same blank melanocytes but blank amounts of pigment produced
number, different
33
melanin production is in response to blank hormone
melanocyte stimulating
34
blank in sunlight increases melanin production
uv
35
melanocytes convert blank to blank
tyrosine, melanin
36
two types of melanin
eumelanin, pheomelanin
37
there are blank types of melanin
several
38
brown or black melanin
eumelanin
39
red brown melanin
pheomelanin
40
freckles or liver spots means there are melanocytes blank
in a patch
41
benign melanocytes make up a blank aka blank
nevus, mole
42
inherited lack of tyrosinase
albinism
43
yellow orange pigment that can be in the dermis
carotene
44
carotene is found in the blank and blank
stratum corneum, subcutaneous
45
carotene and blank are pigments
hemoglobin
46
red oxygen carrying pigment in blood cells
hemoglobin
47
the dermis has these two layers
papillary, reticular
48
there is blank connective tissue in papillary layer
areolar ct
49
there are blank in the papillary layer
dermal papillae and capillaries and neurons
50
layer of dermis that is the anchoring layer with large vessels, adipocytes, and nerves
reticular
51
the connective tissue in reticular layer
dense irregular
52
Network of arteries & veins supplying skin | In subcutaneous layer
cutaneous plexus
53
Follows epidermal/dermal boundary | Helps nourish epidermal layer
papillary plexus
54
Weight gain causes fibers to stretch; they loose elasticity & break which causes
stretch marks
55
more weight loss means blank stretch marks
more
56
this is also called the superficial fascia / subcutaneous layer
hypodermis
57
hypodermis has these two connective tissues
areolar, adipose
58
adipose acts as a blank in hypodermis
insulator
59
hypodermis blanks skin
stabilizes
60
three parts that hair is not on
lips, eyelids, plantar, palmar, parts of digits
61
hair number is blank at birth
fixed
62
three types of hair
vellus, terminal, intermediate
63
peach fuzz hair
vellus
64
thicker and darker pigment type of hair
terminal
65
hair on your arms type
intermediate
66
types of hair on different location blank
varies
67
each hair is made up of these three things
shaft, root, bulb
68
base of follicle is
bulb
69
which penetrates into the dermis
root
70
which mostly projects above the surface of the skin
shaft
71
each hair consists of these three things
cuticle, cortex, medulla
72
hair is made of blank cells
dead keratinized epidermal
73
blank which surrounds the root of hair
hair follicle
74
has Sensory nerves surrounding follicle | Detect hair movement
root hair plexus
75
Smooth muscle Moves hair ‘goose bumps’
arrector pili
76
lasts from 2 to 6 years depending on the body part | matrix cells at base of hair root producing length
anagen stage
77
lasts up to 2 weeks | matrix cells inactive & follicle atrophies
catagen stage
78
three stages of hair growth
anagen, catagen, telogen
79
Hair follicale remains dormant | hair is eventually pushed out by new hair as cycle renews
telogen stage
80
result of melanin produced in melanocytes in hair bulb
hair color
81
Brown/black hair contains large amounts of
eumelanin
82
Blonde hair results from little
eumelanin
83
Red hair has high relative
pheomelanin
84
blank hair is result of decline of all melanin production
gray

Ana (40 decks)

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