Gaster Flashcards

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1
Q

Nachbarorgane des Gasters

A

Ventral:
Hepar (curvatura minor (medial))
Diaphragma (cranial)
Bauchwand (caudal)

Dorsal:
Hepar (am pylorus)
Diaphragma (fundus)
Splen (fundus)
Ren + suprarenalis(medial)
Pancreas (von incisura angularis bis fundus)
Colon + mesocolon transversum (entlang curvatura major)

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2
Q

Gaster - Makroskopie

A
  • muskulöser Beutel
  • größe stark variabel ø 20-30cm
  • ca. 1.5 L Fassung
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3
Q

Gaster - Topographie

Curvaturae und Incisurae

A
  • curvatura major und minor
  • incisura cardiaca (His-Winkel)
  • incisura angularis
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4
Q

Gaster - Topographie

Partes

A
  • Cardia
  • Fundus gastricus
  • Corpus gastricum
  • Pars pylorica
    • Antrum pyloricum
    • canalis pyloricus
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5
Q

Gaster - Topographie

Lage

A
  • intraperitoneal

- ventral im linken epigastricum

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6
Q

Gaster - Topographie

Peritonealduplikaturen

A
  • Lig. Hepatogastricum (teil des Omentum minus)
  • Lig. Gastrocolicum (Omentum majus)
  • Lig. Gastrosplenicum (Omentum majus)
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7
Q

Gaster - Blutversorgung

Arteriell

A

Bilden viele Arcaden ; kommen alle aus dem truncus coeliacus

Arcade curvatura minor

  • Tr. Coeliacus
  • A. Gastrica sinistra
  • Gaster
  • A. Gastrica dextra
  • A. Hepatica Propria
  • A. Hepatica communis
  • Tr. Coeliacus

Arcade curvatura major

  • Tr. Coeliacus
  • A. lienalis -> Aa. gastricae breves
  • A. Gastroomentalis sinistra
  • Gaster
  • A. gastroomentalis dextra
  • A. Gastroduodenalis
  • A. Hepatica communis
  • Tr.Coeliacus
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8
Q

Gaster - Blutversorgung

Venös
Lymphatisch

A

Curvatura minor
V. Gastrica sinitra und Dextra in V. Portae hepatis
V. prepylorica in V. Portae hepatis

Curvatura major

  • Vv. gastricae breves mit V. Lienalis
  • V. Gastroomentalis sinistra mit V. Lienalis
  • V. Lienalis mit V. Mesenterica inferior
  • V. Portae hepatis
  • V. Gastroomentalis dextra in V. Mesenterica superior
  • V. Portae hepatis

Lymphabfluss in Richtung der Curvaturae und dann Richtung splen oder Tr. Coeliacus

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9
Q

Gaster - Histologie

A

-standartaufbau
+ dritte Schicht in tunica muscularis
- fibrae obliquae

-außen serosa

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10
Q

Gaster - Relief

Aufbau

A
  • Plica Gastrica - Mucosa und Submucosa bilden Längsfalten (ca. 0,5-1cm hoch)
  • Darin -> Area Gastrica (wenige mm groß, auf Plica)
  • Darin -> Foveolae gastricae (Magengrübchen, in Area gastica)
  • Darin Bildung Magensekret durch
    • Hauptzellen (Pepsinogen)
    • Nebenzellen (Mucine)
    • Parietal/Belegzellen (HCL)+ instrinsic-faktor
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