Omentum

From IKE

Greater omentum

• an extensive inferior fold
• Formed by the gastrosplenic ligament
• contains an inferior extension of the lesser sac, the inferior recess
• The two layers eventually fuse, obliterating much of the recess
• Forms an apron, covering much of the small and large intestines.

Lesser omentum

• The ventral mesentery which initially attached the caudal foregut to the anterior abdominal wall becomes interrupted by the liver, which grows into it
• The part that remains connecting the liver to the esophagus, stomach and proximal duodenum is the lesser omentum
• Forms part of the roof of the lesser sac
• Its lower free edge (between liver and duodenum) forms the anterior border of the epiploic foramen which connects the greater and lesser sacs.