Stomach
General
Anatomy
Author: Elliot Weisenberg, M.D.
Last author update: 1 July 2012
Last staff update: 8 February 2021
Copyright: 2003-2024, PathologyOutlines.com, Inc.
PubMed Search: normal gross anatomy stomach
Cite this page: Weisenberg E. Anatomy. PathologyOutlines.com website. https://www.pathologyoutlines.com/topic/stomachnormalanatomy.html. Accessed April 18th, 2024.
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
Additional references
