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Intro to Anatomy and Physiology > Ch.6 Integumentary System > Flashcards

Ch.6 Integumentary System Flashcards

1
Q

One of the largest and most extensive organs in the body

A

The Integument

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2
Q

Waterproof shield composed of keratinized stratified squamous epithelium

A

Epidermis

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3
Q

Underlying tough layer made of connective tissue

A

Dermis (Corium)

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4
Q

Third layer found below the dermis, primarily adipose tissue

A

Hypodermis (Subcutaneous)

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5
Q

Produce keratin to provide skin resiliency and strength

A

Keratinocyte

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6
Q

Melanin pigment production to protect keratinocytes from UV rays

A

Melanocyte

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7
Q

Found at the epidermal-dermal junction

A

Merkel Cell

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8
Q

Horny, outermost layer that makes up 1/2 total epidermis thickness

A

Stratum Corneum

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9
Q

Clear Layer, only found in thick skin

A

Stratum Lucidum

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10
Q

Middle later of skin composed of 2-4 layers of flattened keratinocytes

A

Stratum Granulosum

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11
Q

Several layers of cells held together by desmosomes, Spiny Layer

A

Stratum Spinosum

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12
Q

Deepest layer that consists of a single row of keratinocytes, basal layer

A

Stratum Germinativum

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13
Q

Stratum Corneum
Stratum Spinosum
Stratum Basale

A

The 3 Epidermal layers

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14
Q

Greatest portion of integument = the “Hide”

A

Dermis

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15
Q

The 2 Dermis layers

A

1.Papillary and 2.Reticular Layer

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16
Q

Thin, Superficial layer that lies just below the epidermis

A

Papillary Layer

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17
Q

80% of the dermis

A

Reticular Layer

18
Q

Tough, thick layers of fat and connective tissue

19
Q

Top of nose in cats, pigs, sheep, and dogs

A

Planum Nasale

20
Q

Dark, Horny structures on legs of equine family

A

Ergots and Chestnuts

21
Q

Maintains body temperature by trapping insulating layers of air

22
Q

Part of hair visible above skin

A

Hair Shaft

23
Q

Anchors Hair

24
Q

Up to 15 hairs may be associated with one

25
Q

Small, smooth muscle attached to every hair follicle

A

Arrector Pili

26
Q

Oil Glands are

A

Sebaceous Glands

27
Q

Part of hair buried below skin

28
Q

Rapidly dividing epithelial cells that cover the papilla

29
Q

Mound of dermal cells at base of bulb

30
Q

Web of sensory endings that envelops the root

A

Root hair plexus

31
Q

Innermost central core

32
Q

Surrounds medulla

33
Q

Single cell layer hair surface composed of keratin

34
Q

Yellowish and reddish colors in dogs

A

Pheomelanin

35
Q

Brown-black colors in dogs

A

Tyrosine Melanin

36
Q

Reservoir for malodorous secretions

37
Q

Hard outer coverings of distal digits, no retractable except in most cats

38
Q

Evoluntionary remnants of digits

39
Q

Horny outer covering of digits of some animals

A

Hoof = Ungula

40
Q

Mass of horny keratin

Intro to Anatomy and Physiology (4 decks)

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