6 - Integument Flashcards

1
Q

integument is the what of the body

A

outer covering

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2
Q

integument 5 components

A

skin
glands
hair
footpads
claws

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3
Q

what is the mucocutaneous junction

A

natural opening where skin blends with mucous membrane

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4
Q

mucocutaneous junction examples (3)

A

mouth
nose
anus

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5
Q

main functions of integument (7)

A

protection
sensory
secretion
production
storage
thermoregulation
communication

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6
Q

why do dogs and cats sweat and where from mainly

A

not for thermoregulation - mainly sweat from paws for scent marking

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7
Q

how do dogs and cats thermoregulate

A

vasoconstriction and vasodilation

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8
Q

3 layers of skin from top to bottom

A

epidermis
dermis
subcutis

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9
Q

epidermis tissue type

A

epithelium tissue (stratified squamous)

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10
Q

what makes epidermis hard

A

keratin

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11
Q

main function of the epidermis

A

coping with trauma from environment

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12
Q

dermis tissue type

A

irregular dense connective tissue

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13
Q

what keeps dermis strong and flexible

A

lots of collagen

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14
Q

what 3 things can be found in the dermis

A

hair follicles, sweat and sebaceous glands

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15
Q

subcutis tissue type

A

loose connective - areolar

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16
Q

burns - first degree affects which layer

A

epidermis

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17
Q

burns - second degree affects which layer

A

epidermis and dermis

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18
Q

burns - third degree affects which layer

A

epidermis, dermis and subcutis

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19
Q

burns - first degree clinical signs

A

pain, redness and swelling

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20
Q

burns - second degree clinical signs

A

pain, redness, swelling and blistering

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21
Q

burns - third degree clinical signs

A

blackened skin
may be a loss of pain due to nerve endings damage

22
Q

sebaceous glands function

A

secrete sebum

23
Q

what is sebum

A

oily substance that coats hair and skin with thin layer

24
Q

sebaceous glands duct opens…

A

into hair follicle

25
modified sebaceous glands function
produce scents for communication
26
modified sebaceous glands types (6)
tail glands anal glands facial glands paws ceruminous glands meibomian glands
27
what is stud tail
when unneutered elderly dogs get overly oily and scabby on dorsal surface of tail
28
what is cerumen
ear wax
29
what is lacrimation
tear production
30
purpose of lacrimation
cleans and lubricates eyes
31
which 2 parts make up lacrimation
aqueous and lipid
32
where do tears drain through
puncta into nasolacrimal duct
33
when does brown stain form (tears)
if the nasolacrimal duct isnt working properly
34
how to test for corneal ulcer
fluroscein stain - ulcer shows up green
35
which muscle is associated with hair follicles
arrector pili muscle
36
which muscle type are arrector pili muscles associated with
smooth
37
arrector pili muscle control type
unconscious
38
3 hair types
guard wool tactile
39
guard hairs structure, number and location
long, thick stiif one per follicle outer layer
40
wool hairs structure, number and location
soft undercoat thin and short several per follicle
41
tactile hairs structure, number and location
very thick and protruding usually 4 rows on face upper lips, eyes and cat carpus
42
tactile hairs also known as
whiskers
43
tactile hairs function
feel surroundings - gives perception
44
what is the rhinarium
thick hairless skin around nostril
45
rhinarium function
aids in smell
46
foot pads function
shock absorbers and protectors
47
foot pads - forelimb total and breakdown
7 in total 5 digits 1 metacarpal 1 carpal
48
foot pads - hindlimb total and breakdown
5 total 4 digits 1 metacarpal
49
claws - what colour is the quick
pink
50
claws - what is cuticle made from
keratin