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Anatomy > Integumentary System > Flashcards

Integumentary System Flashcards

Skin

1
Q

Skin has three layers

A
  1. epidermis (outer layer)
  2. dermis
  3. subcutaneous layer (inner layer)
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2
Q

Skin contain

A

arteries
vein
sweat
hair
hair follicle
sense receptors
nerve
sebaceous gland

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3
Q

Skin Function

A

Control body temperature & water content
Prevent water loss from skin
Control body heat loss from hair
Synthesize vitamin D from UV Rays & prevent harmful radiation
Protect body from pathogen
Secrete oil gland for inhabitation from bacteria growth on skin
Sensing the sense of touch
Protecting dorsal surface of fingers & toes

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4
Q

Mechanism of Skin Pigmentation

A
  1. Exposure UV Light, lead to reactive oxygen generated
  2. melanin excessive produce melanocytes
  3. skin pigmentation are generated
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5
Q

Stages of hair growth

A
  1. Anagen (growth phase)
    2.Catagen (transition phase)
    3.Telogen(resting phase)
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6
Q

acne vulgaris

A

chronic inflammation disease by pustule eruption of skin. Caused by over production of sebum. Occur mostly in puberty

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7
Q

seborrhea

A

overactivity of sebaceous gland

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8
Q

seborrheic keratosis

A

benign skin growth. waxy in appearance.

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9
Q

onychia

A

inflammation of the bed of fingernail or toe nail

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10
Q

onychocryptosis

A

ingrown nails. nail grow inward that cause inflammation

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11
Q

onychomycosis

A

fungal infection of nail, can be caused by several different fungi

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12
Q

tinea

A

ring worm; fungal infection in skin, hair, or nails

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13
Q

mycosis

A

abnormal condition caused by fungus

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14
Q

gangrene

A

death of tissue mainly caused by loss of circulation to area

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15
Q

parasitic infestation

A

dwelling of microscopic parasites on surface of skin. Parasite live and can lay egg and reproduce on skin surface

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16
Q

impetigo

A

contagious bacterial infection that occur in children. That become crusted then rupture.

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17
Q

lesions

A

fluid filled sacs or pocket in the skin. various type on structure, size, fluid type & depth of skin tissue

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18
Q

scab or crust

A

collection of dried serum and cellular debris after an injury

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19
Q

weal

A

smooth, slightly elevated swollen area that is more red or paler than surrounding skin. usually itch

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20
Q

macule

A

discolor flat spot less than 1cm in diameter (freckles or flat moles)

21
Q

nodule

A

solid, raised lesion larger than 0.5 cm in diameter. Can cause scarring

22
Q

psoriasis

A

common skin disorder resulting in flare-up which red papules covered w/ silvery scales occur on elbows, knees, scalp, back or buttock

23
Q

acanthosis nigricans

A

areas of skin that develop dark, wart like patches

24
Q

albinism

A

genetic condition where there is a deficiency of pigment in skin long with hair and irises of the eye

25
Q

chloasma

A

also known as hyperpigmentation . brown spots on face often occur in pregnancy after delivery

26
Q

vitiligo

A

autoimmune disease. condition resulting from destruction of the melanocytes

27
Q

alopecia

A

baldness of hair. partial or complete

28
Q

folliculitis

A

inflammation of hair follicle. common cause is bacteria found in poorly chlorinated hot tub or whirlpools

29
Q

hirsutism

A

presence of excessive body and facial hair in women. can cause by hormone imbalance

30
Q

contusion

A

BRUISE . injury to skin without breaking skin surface

31
Q

dermatitis; contact dermatitis

A

inflammation of skin; result from contact with allergen

32
Q

eczema

A

persistent or recurrent dermatitis. resulting in redness itching and dryness

33
Q

exfoliative dermatitis (erythroderma)

A

widespread scaling of skin

34
Q

fissure

A

a groove or crack in the skin

35
Q

ulcer

A

open wound resulting in tissue loss around the edge

36
Q

epidermis

A

Top outer layer of the skin. Made up of thin membrane of squamous epithelium that will turn into stratified squamous epithelium. Does not have any blood supply, connective tissue and lymphatic vessels. Depend on dermis. Create a barrier to infection

37
Q

Keratin

A

Hard protein cell produced by the body. Also known as horny cell that last about 3-4 weeks before it is shred and replace. Found in hair & nail & inside of epidermal cells

38
Q

basal layer

A

deepest layer of the epidermis. This living layer constantly multiples and divides to supply cells to replace cells that are sloughed off the skin surfaced

39
Q

dermis

A

It composed of collagen fibers that give skin elasticity & protects vessels and fiber with layer

40
Q

subcutaneous layer

A

also known as hypodermis. Made up of fat cells. Lipocytes are there to protect organs below, store energy and to provide insulation

41
Q

Hair

A

Color of your hair is result of melanin production.

42
Q

Hair shaft

A

older keratinized cells that hair root force upward, found within the hair follicle

43
Q

Arrector pills

A

smooth muscle attached to root of the hair. when it is contract you get what call goose bump

44
Q

hair follicle

A

sac that hair fiber grows in

45
Q

hair root

A

base of the hair itself

46
Q

Nail

A

Nail has its own layer of: nail body, bed, adipose tissue (cushioning), and phalanx (bone)

47
Q

Sebaceous glands

A

Found in dermis layer. It secrete sebum that help lubricate skin and keep water loss to minimum.

48
Q

sudoriferous sweat gland

A

Typical sweat gland of skin. Body natural temperature regulator, secrete perspiration through sweat duct to pore.

49
Q

apocrine sweat gland

A

Active after puberty begins. Located at the pubic, anal and mammary areas. It secrete substance that can produce odor when it come in contact with bacteria on skin that known as body odor.

Anatomy (17 decks)

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