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Histology > Connective Tissue > Flashcards

Connective Tissue Flashcards

1
Q

fibroblasts

A

connective tissue cells that produce fibers

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2
Q

loose connective tissue

A

low fiber to cell ration

ex: lamina propria

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3
Q

dense connective tissue

A

high fiber to cell ratio

ex: tendons and ligaments

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4
Q

regular vs. irregular dense connective tissue

A

regular = all fibers are arranged in one direction
*areas where you don’t want tearing

irregular = when tissue has to be strong in all directions
*heart

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5
Q

mesenchyme

A

loose CT in embryo - acts like stem cells and can give rise to many tissues

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6
Q

mucosa

A

epithelium and lamina propria of intestinal tract lumenal side

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7
Q

submucosa

A

dense irregular connective tissue

with fibroblasts and fibers

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8
Q

serosa

A

mesothelium and underlying connective tissue

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9
Q

trichrome stain

A

stains collagenous material

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10
Q

endomysium

A

loose CT surrounding muscle fibers

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11
Q

fascicle

A

bundle of muscle fibers

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12
Q

perimysium

A

dense irreg. CT surrounding muscle fascicles

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13
Q

epimysium

A

dense irreg. CT surrounding muscles

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14
Q

endoneurium

A

Loose CT surrounding axons

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15
Q

perineurium

A

surrounds fascicles of axons

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16
Q

epineurium

A

surrounds bundles of axon fascicles

17
Q

mast cells contain which compounds?

A

heparin and histamine

18
Q

reticular connective tissue is made up of what type of collagen?

A

type III

silver stain WHY**

19
Q

what stains for laminin?

A

brown stain

20
Q

white adipose tissue

A

large single droplet of lipid (unilocular)

we are born with a certain number, as we get fatter or thinner our cells take on more or less lipid

21
Q

brown adipose tissue

A

accumulates in liquid droplets (multilocular)

changes in abundance during lifetime

infants have more than adults

generates heat - has large amounts of mitochondria

myf5+

UCP-1

22
Q

beige (brite) fat

A

also has UCP-1 and is thermogenic like brown fat, but is present in adult body and can be recruited when a person is cold

23
Q

ground substance

A

amorphous material in CT containing water, glycoprotein, and proteoglycans

24
Q

mesenteries

A

sheets of connective tissue that connect the viscera to the body wall

25
Q

stroma

A

supporting tissue of an organ

26
Q

parenchyma

A

tissues of an organ responsible for the primary function of that organ

27
Q

UCP-1

A

disrupts the proton gradient

causes protons to leak from intermembrane space - disrupts oxidative phosphorylation

so instead of making ATP it generates heat

Histology (12 decks)

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