Stomach
General
Anatomy


Topic Completed: 1 July 2012

Minor changes: 8 February 2021

Copyright: 2003-2021, PathologyOutlines.com, Inc.

PubMed Search: normal gross anatomy stomach

Elliot Weisenberg, M.D.
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Page views in 2021 to date: 571
Cite this page: Weisenberg E. Anatomy. PathologyOutlines.com website. https://www.pathologyoutlines.com/topic/stomachnormalanatomy.html. Accessed May 15th, 2021.
Definition / general
  • Normal volume is 1.5 liters, capacity is 3 liters, potentially more
  • Fine mosaic-like pattern of mucosa because of punctuations by gastric pits or foveolae
  • Longitudinal infoldings of mucosa and submucosa known as rugae are coarser proximally and when stomach is empty

  • Cardia:
    • Narrow conical portion distal to gastroesophageal junction
    • Many authors claim that cardiac mucosa is reflux-associated epithelia and not normally present
    • Of note in the AJCC Cancer Staging Manual, 7th Edition (2010), carcinomas of the esophagus and esophagogastric junction (the proximal 5 cm of the stomach) are staged identically

  • Fundus:
    • Dome shaped proximal stomach

  • Body / corpus:
    • Remainder of stomach to incisura angularis

  • Incisura angularis:
    • Where stomach narrows before it joins duodenum

  • Antrum:
    • Incisura angularis to pyloric sphincter (3-4 cm)

  • Pylorus:
    • Muscular ring that controls flow of food content into proximal duodenum

  • Lesser curvature:
    • Medial curvature of stomach on the right

  • Greater curvature:
    • Lateral curvature of stomach
Gross images

Contributed by Leon Metlay, M.D.

22 week fetus with congenital diaphragmatic hernia

Liver and stomach in chest, heart shifted to right, both lungs small

Hypoplastic left lung and left heart

Hypoplastic right lung

Groove in liver, where diaphragm edge was



Images hosted on other servers:

Normal appearance of the stomach, opened along the greater curvature

Normal appearance of the gastric antrum extending to the pylorus at the right of center

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