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Tissues > Epidermis And Dermis Layers > Flashcards

Epidermis And Dermis Layers Flashcards

0
Q

Stratum spinosum (5)

A 
Sits on basal layer
Polyhedral
Round central nuclei
Intracellular bridges
Cytoplasmic projections terminate as desmosomes
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1
Q

Stratum basale (6)

A 
Sits on basement membrane
Separates dermis and epidermis
Keratinocyte production
Cuboidal/columnar
Ribosomes and mitochondria
Melanin granules
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2
Q

Stratum granulosum (2)

A

Keratohyaline granules

Upper - flattened, densely packed, little cytosol

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3
Q

Stratum lucidum (3)

A

Merges with upper stratum granulosum
Extremely flattened cells
Organelles/nuclei not readily apparent

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4
Q

Stratum corneum (4)

A

Keratin dead cells
Waterproofing result of hydrophobic glycophospholipids –> glue-like
Flakes
Washed away

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5
Q

Superficial loose papillary dermis (3)

A

Thin
Loosely arranged collagen and elastin
Small capillary bed and nerves

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6
Q

Dense reticular dermis (3)

A

Collagen and elastin parallel to skin
Bulk of dermis
Blood vessels, nerves, lymphatics

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Tissues (3 decks)

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