Dissection of stomach

External muscular layer of gastric wall, posterior aspect

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Image #142-4

Dissection of stomach External muscular layer of gastric wall, posterior aspect The stomach has been rotated upward and to the right. The peritoneum which covered the posterior surface of the stomach has been removed to reveal the outer longitudinal layer of muscle. 1 . Major curvature of stomach 2 . Body of stomach (peritoneum removed to expose tunica muscularis) 3 . Lesser curvature of stomach 4 . Angular notch 5 . Pyloric antrum 6 . Pyloric canal 7 . Pylorus 8 . Thoracic aorta 9 . Fundus of stomach 10 . Diaphragm 11 . Spleen 12 . Left pointer: Esophagus (emerging through esophageal hiatus) Right pointer: Phrenic lymph node 13 . Phrenicolienal ligament (cut across) 14 . Esophageal branch of left phrenic artery 15 . Left gastric plexus 16 . Celiac lymph node 17 . Left gastric artery 18 . Pancreas 19 . Middle colic artery (lying approximately in position it occupied within mesotransverse colon) 20 . Jejunum (cut across) 21 . Caudate lobe 22 . Celiac lymph node 23 . Common hepatic artery