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Histology > Histology Lab Unit 1 > Flashcards

Histology Lab Unit 1 Flashcards

1
Q

basic dye

A
  • binds to basophilic tissue (DNA/RNA)
  • hematoxylin
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2
Q

acidic dye

A
  • binds to eosiniphilic tissue (proteins + cytoplasmic organelles)
  • eosin
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3
Q

cilia function

A

movement

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4
Q

flagella function

A

propulsion

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5
Q

microvilli function

A

Increase SA for absorption

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6
Q

heterochromatin

A

densely packed, stains darker

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7
Q

euchromatin

A

loosely packed, stains lighter

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8
Q

simple squamous function

A
  • facilitates movement of mesothelium
  • active transport
  • secretion
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9
Q

simple cuboidal function

A

covering, secretion

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10
Q

simple columnar function

A

protection, lubrication, absorption, secretion

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11
Q

stratified squamos keratinized function

A

protection, prevents water loss

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12
Q

stratified squamos non keratinized function

A

protection, secretion, prevents water loss

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13
Q

stratified cuboidal function

A

protection, secretion

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14
Q

transitional epithelim function

A

protection, distensibility

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15
Q

stratified columnar epithlium function

A

protection

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16
Q

pseudostratifed function

A

protection, secretion, transport of mucous

17
Q

endothelium

A

simple squamous epithelium that lines wall of a blood vessel

18
Q

fibroblast

A
  • secretes ECM proteins and ground substance
19
Q

collagen function

A

structural support, resists stretching

20
Q

elastic fiber function

A

elasticity

21
Q

loose connective tissue appearance

A

loose/sparse, found in lamina protia

22
Q

Dense irregular connective tissue

A

lots of collagen, few cells, in submucosa

23
Q

cartilage function

A

lubricant, bone development, cushions joints, resists stress

24
Q

perichondrium

A

band of CT bordering cartilage

25
Q

hyaline cartilage function

A

reduce friction and protection

26
Q

elastic cartilage function

A

elasticity

27
Q

fibrocartilage description + function

A

NO PERICHONDRIUM, chondrocytes are in long isogenous chains
- resists compression

28
Q

periosteum

A

connective tissue containing osteoblasts and clasts

29
Q

Endosteum

A

lines haversion and volkmann canals

30
Q

intramembranous ossification

A

osteoblasts develop from embryonic tissue

31
Q

endochondral ossification

A

hyaline cartilage –> osteoblasts

32
Q

zones of endochondral ossification

A
  • reserve: hyaline
  • proliferation : chondrocytes undergo rapid mitosis/isogenous chains
  • hypertrophy: chondrocytes grow
  • calcification: chondrocytes apoptose and lacunae are empty
  • ossification: osteoblasts establsim in vacant lacuna

Histology (9 decks)

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