Ventral mesentery

Ventral mesentery
The primitive mesentery of a six weeks’ human embryo, half schematic.
Schematic figure of the bursa omentalis, etc. Human embryo of eight weeks.
Identifiers
Gray's	p.1103
Dorlands /Elsevier	m_10/12526439
Anatomical terminology

Ventral mesentery is the part of the peritoneum closest to the navel.

Development

The cephalic portion of the septum transversum takes part in the formation of the diaphragm, while the caudal portion into which the liver grows forms the ventral mesentery (or ventral mesogastrium, when referring to the portion at the stomach).^[1]

The lesser omentum is formed, by a thinning of the mesoderm or ventral mesogastrium, which attaches the stomach and duodenum to the anterior abdominal wall. By the subsequent growth of the liver this leaf of mesoderm is divided into two parts, viz., the lesser omentum between the stomach and liver, and the falciform and coronary ligaments between the liver and the abdominal wall and diaphragm.^[1]

Mesentery in red. Ventral mesentery is the upper part of the circuit. The lower part is dorsal mesentery.

References

^ ^a ^b Gray's anatomy

Prenatal development/Mammalian development of digestive system, coelom and septa, and mesenchymal mesenteric masses (GA 11.1101, TE E5.4, 5.8-9)

Gut

Upper GI tract and accessory	Stomodeum Foregut: upper GI Buccopharyngeal membrane Rathke's pouch Tracheoesophageal septum accessory Pancreatic bud Hepatic diverticulum

Lower GI tract	Midgut Hindgut: Urorectal septum Proctodeum Cloacal membrane Cloaca

Abdominopelvic

Mesentery	Dorsal mesentery Ventral mesentery

Thoracic diaphragm	Septum transversum

Other	Intra-embryonic coelom Extra-embryonic coelom

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Abdominopelvic cavity: Abdomen/abdominal cavity and pelvis/pelvic cavity and peritoneal cavity (TA A10, TH H3.04.08, GA 4.408 and GA 11.1147)

Extraperitoneal space

Peritoneal ligaments,
mesenteries, and folds

Abdominal

From ventral mesentery	Lesser omentum: Hepatoduodenal ligament Hepatogastric ligament Liver: Coronary ligament (Left triangular ligament Right triangular ligament Hepatorenal ligament) Falciform ligament (Round ligament of liver and Ligamentum venosum in it, but not of it)

From dorsal mesentery	Greater omentum: Gastrophrenic ligament Gastrocolic ligament Gastrosplenic ligament Mesentery: Transverse mesocolon Sigmoid mesocolon Mesoappendix Root of the mesentery Splenorenal ligament Phrenicocolic ligament Folds: Umbilical folds (Supravesical fossa, Medial inguinal fossa, Lateral umbilical fold, Lateral inguinal fossa) Ileocecal fold

Abdominal cavity	Greater sac Omental bursa Omental foramen

General	Cystohepatic triangle Hepatorenal recess of subhepatic space Abdominal wall (Inguinal triangle) Peritoneal recesses: Paracolic gutters Paramesenteric gutters

Urogenital peritoneum

Uterus/ovaries	Broad ligament of the uterus (Mesovarium, Mesosalpinx, Mesometrium) Ovarian ligament Suspensory ligament of ovary

Recesses	♂: Recto-vesical pouch Pararectal fossa ♀: Recto-uterine pouch Recto-uterine fold (Uterosacral ligament) Vesico-uterine pouch Ovarian fossa Paravesical fossa

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Categories

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Ventral mesentery