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Gross Anatomy > Collagen > Flashcards

Collagen Flashcards

1
Q

Mesenchymal Connective Tissue

A

in embryo/ fetus
has reticular fibers and mesenchymal cells
becomes diff types of CT

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2
Q

Mucous Connective Tissue

A

matrix w/ collagen fibers and fibroblasts

in umbilical cord (as Wharton jelly) and other developing structures

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3
Q

Supporting Connective Tissue

A

cartilage and bone

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4
Q

Hematopoietic Tissue

A

Blood and bone marrow

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5
Q

Fixed Cells

A

fibroblasts

stay in CT

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6
Q

Wandering Cells

A

eosinophils, mast, plasma cells

travel within tissue

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7
Q

Fibroblasts

A

main cell in CT

make procollagen

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8
Q

Most common type of collagen

A

Type 1

90% of all collagen

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9
Q

Fibrous Collagen

A 
25 nm (cornea) - 200 nm (skin/ tendon)
Type 1, 2, 3
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10
Q

Non-fibrous Collagens

A

25 nm (capillaries and glomeruli) - 200 nm (lens capsule)
Type 4
in all basement membranes

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11
Q

Filamentous Collagens

A

form loosely aggregated fibers w/ little or no pattern
pericellular or matrix collagens
Type 6, 7, 9, 10

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12
Q

Cornea

A

transparent tissue w/ fine collagen fibers of same diameter w/ great amount of organization
Type 1, 5

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13
Q

Sclera

A

opaque tissue w/ thick interwoven collagen fibers
30nm - 300nm
Type 1, 3

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14
Q

Vitreous Body

A

gel w/ small amounts of fine CF (7- 13nm)

Type 2

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15
Q

Lens Capsule

A

has amorphous basement membrane structure

Type 4

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16
Q

Choroid

A

highly vascularized tissue of iris

17
Q

Vitreous Function

A

maintain IOP and act as shock absorber

18
Q

Fibers of Vitreous

A

stabilize shape of gel

reduce compressibility of gel

19
Q

Descemet’s Membrane

A

separates corneal stroma from corneal epithelium

Type 4, 8

20
Q

Retina

A

Type 4

21
Q

Type 6

A

cornea and corneal stroma
made by corneal endothelial cells
filamentous collagen

22
Q

Type 8

A

Descemet’s

filamentous

23
Q

Type 9

A

vitreous

filamentous

24
Q

Corneal Strength

A

depends on cross linking of collagen fibers in head to tail orientation

Gross Anatomy (30 decks)

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