Lesser sac
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| Identifiers | |
| Latin | bursa omentalis |
| AcronymTemplate:Pluralize from text | Script error: No such module "If empty". |
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| Anatomical terminology [[[d:Lua error in Module:Wikidata at line 865: attempt to index field 'wikibase' (a nil value).|edit on Wikidata]]] | |
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The lesser sac, also known as the omental bursa, is a part of the peritoneal cavity that is formed by the lesser and greater omentum. Usually found in mammals, it is connected with the greater sac via the omental foramen or Foramen of Winslow. In mammals, it is common for the lesser sac to contain considerable amounts of fat.
Anatomic margins
- Anterior margin
- listed from the top-to-bottom margin: Caudate lobe of the liver, lesser omentum, stomach, gastrocolic ligament
- Lateral margin
- listed from the most anterior to the most posterior margin: Gastrosplenic ligament, spleen, Lienorenal ligament
- Posterior margin
- Left kidney and adrenal gland, pancreas
- Inferior margin
- Greater omentum
If any of the marginal structures rupture their contents could leak into the lesser sac. If the stomach were to rupture on its anterior side though the leak would collect in the greater sac.Lua error in package.lua at line 80: module 'Module:Category handler/data' not found.[citation needed]
The lesser sac is formed during embryogenesis from an infolding of the greater omentum. The open end of the infolding, known as the omental foramen is usually close to the stomach.Lua error in package.lua at line 80: module 'Module:Category handler/data' not found.[citation needed]
Additional images
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Schematic figure of the bursa omentalis, etc. Human embryo of eight weeks. -
Diagrams to illustrate the development of the greater omentum and transverse mesocolon -
Omental bursa
See also
- Terms for anatomical location
- Greater sac
- Omental foramen (Epiploic foramen, Foramen of Winslow)
- Lesser omentum
- Greater omentum
- Peritoneum
References
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- ^ Lua error in package.lua at line 80: module 'Module:Citation/CS1/Utilities' not found.
External links
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