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ANATOMY > Quiz 2 > Flashcards

Quiz 2 Flashcards

1
Q

Span of renewal of Stratum basale

A

15-30 days

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2
Q

layer of the epidermis responsible for the regeneration of the other layers in the epidermis

A

Stratum Basale

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3
Q

Binds the stratum basale to the basement membrane

A

Hemidesmosomes

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4
Q

Thickest epidermal layer

A

Stratum spinosum

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5
Q

Characteristic of cells composing the stratum spinosium

A

Polyhedral Keratinocytes

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6
Q

Layer of skin synthesizing keratin

A

Stratum Spinosum

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7
Q

Gives spiny appearance of stratum spinosum

A

desmosomes

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8
Q

Makes up the Malphigian Layer

A

Stratum Basale and Spinosum

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9
Q

Epidermal layer only found in thick skin

A

Stratum Lucidum

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10
Q

What is Psoriasis vulgaris

A

Abnormal increase in number of proliferating cells in the basal layer

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11
Q

Releases pigment to the keratinocytes

A

Melanosomes

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12
Q

Depigmentation disorder resulting from degeneration and disappearance of entire melanocytes

A

Vitiligo

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13
Q

Hereditary inability of melanocytes to synthesize melanin

A

Albinism

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14
Q

Epithelial tactile cells abundant in fingertips and base of hair follicles

A

Merkel’s cells

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15
Q

Two layers of dermis

A

Papillary and reticular

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16
Q

Characteristic component of papillary layer

A

Loose CT

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17
Q

Characteristic component of reticular layer

A

dense irregular CT

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18
Q

Responsible for tone and texture of the skin

A

Dermis

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19
Q

Responsible for skin elasticity

A

Reticular layer of dermis

20
Q

Regular lines of tension in the skin formed by collagen and elastic fibers

A

Langer’s Lines

21
Q

Gland classification of sebaceous gland according to morphology and mechanism of secretion

A

Simple Branched Acini, Holocrine

22
Q

Glad classification of sweat glands according to morphology

A

Simple coiled tubular

23
Q

Gland involved in adrenergic sweating

A

Apocrine glands

24
Q

Gland involved in cholinergic sweating

A

Eccrine glands

25
Q

Immature cartilage forming cells located at the periphery of the perichondrium

A

Chondroblasts

26
Q

Chondroblasts trapped in the matrix

A

Chondrocytes

27
Q

Mature cells surrounded by ECM that lie in lacunae

A

Chondrocytes

28
Q

Area immediately surrounding chondrocytes

A

Territorial matrix

29
Q

Most abundant inorganic component of bone

A

Calcium hydroxyapatite

30
Q

Hormone that stimulates bone matrix production

A

Parathyroid hormone (PTH)

31
Q

Differentiated osteoblasts surrounded by matrix enclosed with lacunae

A

Osteocytes

32
Q

Important in bone resorption and bone remodelling

A

Osteoclasts

33
Q

Hormone that activates bone digestion/resorption

A

Calcitonin

34
Q

Site of bone growth and resorption

35
Q

Released in acrosome reaction to digest zona pellucida

36
Q

Zona reaction

A

Inactivates sperm receptors which prevents polyspermy

37
Q

Post fertilization events

A

Pronucleus formationSyngamyCleavageCompactionMorulation

38
Q

16-cell stage

39
Q

Forms placenta

A

Tropoblast

40
Q

Forms embryo

A

Embryoblast

41
Q

Forms amniotic cavity

42
Q

Divisions of extraembryonic mesoderm

A

SplanchnicSomatic

43
Q

Determines body axes

A

Primitive Streak

44
Q

First cels to migrate inward in gastrulation that displace hypoblast cells aside

45
Q

Origin of neural crest

ANATOMY (33 decks)

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