Integumentary system Flashcards

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1
Q

What is the integumentary system?

A

Protects bod from loss of water or abrasion
(Makes up skin and it’s appendages)

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2
Q

Skin layer
1. Epidermis

A

-Outer layer
-Waterproof
-Keeps out pathogens
-Elastic
-Gives skin its colour

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3
Q

Skin layer
2.dermis

A

-middle layer
-contains hair follicles, nerves, blood vessels and glands
-regulates body temperature

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4
Q

Skin layer
3. Subcutaneous layer

A

-Inner layer
-provides insulation
-high amount of fat
-made of connective tissue

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5
Q

what are the 3 skin glands

A

-sudoriferous
-sebaceous
-ceruminous

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6
Q

skin gland
-sudoriferous

A

secrete sweat

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7
Q

skin gland
-subaceous

A

secrete sebum- keeps hair lubricate

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8
Q

skin gland
-ceruminous

A

specialized sudoriferous glands -secretes ear wax

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9
Q

nails

A

-nail matrix forms on top of dermis layer
-the root of the nails grows from the thick layer of matrix

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10
Q

claws and hooves

A

made of section of dermis which is covered in a layer of keratinized epithelium

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11
Q

horns

A

are made from cone keratin which surrounds mass of bone

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12
Q

antlers

A

are bone young antlers covered in velvety skin which is rubbed off as the antlers develop
the bone turns into a compact bone tissue as they mature

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13
Q

what is the contour feather?

A

gives shape and colour
also helps insulate

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14
Q

what is the down feather?

A

soft and fluffy
helps insulate bird

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15
Q

what is the semiplume feather?

A

found under the contour feather
used for insulation

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16
Q

what is the flight feather?

A

found in wings and tail
gives strength for flight

17
Q

what is the bristle feather?

A

found around eyes and mouths of insect eating birds
protects eyes by funneling food into mouth

18
Q

what is the filoplume feather?

A

very small and attatched to nerve endings
sends information to brain about feather alignment

19
Q

what are 7 functions of the feathers?

A

flight
protection
warmth
stealth
displaying
avoiding predation
walking