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MIDTERMS ANAPHY > Integumentary System > Flashcards

Integumentary System Flashcards

1
Q

“integument” means covering

A

INTEGUMENTARY SYSTEM (SKIN)

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2
Q

the appearance of the integumentary system can
indicate physiological imbalances in the body.

A

INTEGUMENTARY SYSTEM (SKIN)

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3
Q

consists of the skin and accessory structures, such as
hair, glands, and nails

A

INTEGUMENTARY SYSTEM (SKIN)

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4
Q

this system is one of the more familiar systems of the
body to everyone because it covers the outside of the
body is easily observed

A

INTEGUMENTARY SYSTEM (SKIN)

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5
Q

Components of integumentary system:

A

skin
hair
nails
glands

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6
Q

skin functions

A

-Protection (major function)
-Prevention of water loss from the body surface
Regulation of Heat Loss
-Excretion of urea, uric acid, salt and water
(sweating)
-Vitamin D synthesis
-Sensation

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7
Q

SKIN RECEPTORS

A
  1. Free Nerve Endings
  2. Ruffinis Corpuscle
  3. Krause’s Corpuscle
  4. Paccinian Corpuscle
  5. Meisner’s Corpuscle – Light Touch
  6. Merkels Disc – Light Touch
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8
Q

Pain

A
  1. Free Nerve Endings –
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9
Q

Warmth/Heat

A
  1. Ruffinis Corpuscle
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10
Q

Cold

A
  1. Krause’s Corpuscle
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11
Q

Deep Pressure

A
  1. Paccinian Corpuscle
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12
Q

Light Touch

A
  1. Meisner’s Corpuscle
  2. Merkels Disc
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13
Q

1st major skin region (outside)

A

EPIDERMIS

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14
Q

most superficial layer of skin

A

EPIDERMIS

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15
Q

prevents water loss and resists abrasion

A

EPIDERMIS

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16
Q

is a layer of epithelial tissue that rests on the dermis

A

EPIDERMIS

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17
Q

composed of stratified squamous epithelium
(keratinized)

A

EPIDERMIS

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18
Q

its deepest layer, new cells are produced by
mitosis

A

EPIDERMIS

19
Q

the outermost cells protect the cells underneath,
and the deeper, replication cells lost from the surface

A

EPIDERMIS

20
Q

Process in which new cells (with keratin) push old cells to surface

A

Keratinization

21
Q

40-56 days for new cells to reach surface

A

Keratinization

22
Q

cells move to the surface, lose water, and nuclei change

A

Keratinization

23
Q

a continuous process

A

Keratinization

24
Q

the term keratinization reflects the fact that the cells become filled with the protein ___, which makes them more rigid and durable

A

Keratin

25
Q

gives the stratum corneum its structural strength

A

Keratin

26
Q

LAYERS OF EPIDERMIS

A

Stratum Corneum
Stratum Lucidum
Stratum Granulosum
Stratum Spinosum
Stratum Basale (Stratum Germinativum)

27
Q

thickest layer of epidermis

A

Stratum Corneum

28
Q

outermost layers about 20-30 cell layers thick

A

Stratum Corneum

29
Q

cornified/horny cells – shingle-like dead cells
remnants completely filled with keratin

A

Stratum Corneum

30
Q

coated and surrounded by lipids, which acts as waterproofing material, preventing fluid loss through the skin

A

Stratum Corneum

31
Q

accounts 75% of epidermal thickness

A

Stratum Corneum

32
Q

rubs and flakes of slowly and steadily and is
replaced by cells produced by the division of the deeper stratum basale cells

A

Stratum Corneum

33
Q

(lucidus = clear)

A

Stratum Lucidum

34
Q

more apparent in the hairless thick skin of the palms and soles

A

Stratum Lucidum

35
Q

consists of 3-5 layers of clear, flat, dead cells

A

Stratum Lucidum

36
Q

contains intermediate substance eleidin that is transformed into keratin

A

Stratum Lucidum

37
Q

combination of accumulating water repellant keratin inside them and its increasing distance from the blood supply (in the dermis) effectively dooms the stratum lucidum cells due to inability to
get adequate nutrients and oxygen

A

Stratum Lucidum

38
Q

consists of 3-5 layers of flattened cells that
develop darkly staining granules called
keratohyaline (prescursor of keratin)

A

Stratum Granulosum

39
Q

keratin molecules assemble into intermediate filaments that form a barrier to protect deep layers from injury and microbial invasion and make the
skin waterproof

A

Stratum Granulosum

40
Q

contains 8-10 layers of polyhedral (many sided) cells that fit closely together

A

Stratum Spinosum

41
Q

cells are covered with prickly spines

A

Stratum Spinosum

42
Q

contains 8-10 layers of polyhedral (many sided)
cells that fit closely together

A

Stratum Spinosum

43
Q
A

MIDTERMS ANAPHY (2 decks)

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