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Histology One > Hard Histology > Flashcards

Hard Histology Flashcards

1
Q

what is the lamina propria

A

non cellular polysarrhirde layer

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2
Q

what is the lamina propria composed of

A

Laminin
type 4 collagen
encatin

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3
Q

what can the cytoskeleton attach to

A

each other or to the cell membrane

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4
Q

what does the cytoskeleton create

A

a 3d internal scaffolding

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5
Q

how big is the microvilli

A

0.5 - 1 um

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6
Q

how big is the cilia

A

10 um long

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7
Q

what is keratin

A

tough structural proteins

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8
Q

what is exocrine

A

secrete product onto the surface of the lumen via the duct

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9
Q

what are the components of the extracellular matrix

A

fibres
ground substance
tissue fluid

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10
Q

what does most of the connective tissue come from

A

mesoderm

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11
Q

where does head connective tissue come from

A

neural crest ectoderm

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12
Q

what do active fibroblasts do

A

rapidly proliferate forming ECM fibres

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13
Q

fibrocytes (inactive) do

A

mature connective tissue that is inactive and immobile

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14
Q

what does acitve fibroblasts have alot of

A

RER and Golgi apparatus

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15
Q

what is the size of the active fibroblasts nucleus

A

large nucleus

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16
Q

what is the size of the adipose

A

50 - 150 um

17
Q

what is the diapedesis

A

leukocytes squeezing themselves between between endothelial cells of blood vessels

18
Q

what forms macrophages

A

monocytes of bone marrow
some derived from mesenchyme

19
Q

what is the size of marcophages

A

10 - 30 um

20
Q

what is the function of marcophages

A

clean up dead cells

21
Q

what is the size of mast cells

A

20 - 30 um

22
Q

what is the cytoplasm is filled with in mast cells

A

basophilic secretory granules

23
Q

what is the size of the nucleus of mast cells

A

small nucleus

24
Q

what is the function of the mast cells

A

release inflammatory mediators ~ histamine

25
Q

what is hparin

A

anticorngulant

26
Q

what is histamine

A

increases permeability pf msall vessels

27
Q

what is lympochyte (cytoplasm and nucleus)

A

small nucleus no cytoplasm surrounding it

28
Q

what is the phillic of plasma
why is that

A

basophilic due to RER

29
Q

why is the lymphocyte a clock face

A

peripheral region of heterchromatin with the light areas of euchromatin

30
Q

what is the function of lymphocyte

A

produce antibodies and circulate them around the body

Histology One (14 decks)

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