Lesser sac

The lesser sac or omental bursa is a cavity found within the abdomen and is part of the peritoneal cavity

Gross anatomy

  • formed from the space between the greater and lesser omentum
  • part of the peritoneal cavity that lies posterior to stomach and lesser omentum 1
  • anterior wall
    • peritoneum of lesser omentum
    • posterior surface of stomach
    • anterior two layers of greater omentum
  • posterior wall
    • peritoneum that covers the diaphragm, pancreas, left kidney and adrenal gland, and duodenum
    • posterior two layers of the greater omentum
Abdominal and pelvic anatomy
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Article information

rID: 33840
Section: Anatomy
Tag: refs
Synonyms or Alternate Spellings:
  • Omental bursa

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