Digestion Flashcards

1
Q

allmän organisation digestionvägg

A

mucosa

  • epithelium mucosae (enkelt kuboidalt)
  • lamina propria mucosae (lucker)
  • lamina muscularis mucosae

submucosa (bindväv, Meissner)

muscularis externa

  • stratum circulare
  • Auerbachs
  • stratum longitudinale

subserosa (bindväv)

serosa/adventitia

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2
Q

struktur esophagus

A
  • flerskiktat skivepitel
  • mkt mukösa körtlar (submucosa)
  • bindvävsfattigt, ffa muskler
  • adventitia!
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3
Q

struktur gaster: fundus

A
  • foveolae (starkt veckad mucosa)
  • parietalceller: stor eosinofil cytoplasma (“stekta ägg”) längst upp i körtelrör
  • huvudceller: mindre/blåare cytoplasma
  • 3 muscularislager (fibrae obliquae innerst)
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4
Q

struktur gaster: antrum

A

större foveolae, ej parietalceller/chief cells (men gastric cells)

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5
Q

struktur tunntarm

A
  • villi (mucosa-veck)
  • Lieberkühnska kryptor (körtelgångar)
  • chief cells: basofila (mörka) djupt i körtelrör
  • bägarceller: fler ju mer distalt
  • baslinje kryptor/villi
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6
Q

struktur duodenum

A
  • relativt få bägarceller längs Lieberkühnska
  • Brunnerska körtlar i submucosa!!!
  • störst/flest villi i hela GI
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7
Q

struktur ileum

A
  • mkt bägarceller
  • Peyerska plack, M-celler
  • Paneths celler: granulära, basen av Lieberkühnska
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8
Q

struktur appendix

A
  • slät mucosa (ej villi)
  • lymfoid vävnad (lamina propria)
  • adipocyter (subserosa/submucosa)
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9
Q

struktur colon

A
  • slät mucosa
  • lymfoid vävnad (lamina propria)
  • taniae (muscularis externa stratum longitudinale)
  • mer bägarceller än ileum
  • Paneths celler
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10
Q

struktur portatriad

A
  • lymfkärl: mkt tunna strukturer, cellfattig vägg
  • gallgångar: kubiskt epitel
  • kärl: endotel
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11
Q

struktur gallblåsa

A
  • enradigt cylinderepitel
  • kraftig veckning (divertiklar, kryptor)
  • tunt glattmuskellager
  • adipocyter (subserosa, adventitia)
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12
Q

struktur pankreas

A
  • serösa acini (exokrin del)
  • Langerhanska öar
  • centroacinära celler (insidan acini, ut mot interkalära gångarna)
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