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Lesser peritoneal sac --> omental bursa

(Science: anatomy) An isolated portion of the peritoneal cavity lying dorsal to the stomach and extending craniad to the liver and diaphragm and caudad into the greater omentum; it opens into the general peritoneal cavity at the epiploic foramen.

Synonym: bursa omentalis, lesser peritoneal cavity, lesser peritoneal sac, omental sac.