This study unit will help you to:
1. Learn what exactly is the omental bursa and its anatomical position.
2. Learn about the structure and function of the omental bursa.
3. Identify the organs and neurovascular structures that are related to the omental bursa.
The omental bursa is a large peritoneal recess located in the abdomen, posterior to the stomach and the lesser omentum. It is also known as the lesser sac, in contrast to the main and larger part of the peritoneal cavity which is referred to as the greater sac. These two cavities are connected by the epiploic foramen (of Winslow). The size of the omental bursa varies greatly, mainly due to the volume of the organs that make up its walls.
This video tutorial will provide you with a comprehensive overview of the omental bursa.
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|Definition||Omental bursa (lesser sac) is a hollow space formed by the greater and lesser omentum and its adjacent organs.|
Anterior: hepatogastric ligament, posterior surface of stomach, posterior layers of the lesser and greater omenta
Posterior: transverse colon, transverse mesocolon, pancreas, left adrenal gland, and the upper end of the left kidney, abdominal aorta, coeliac trunk, diaphragm
Superior: extends between esophagus and ligamentum venosum
Inferior: from gastrosplenic ligament to duodenum
Left: gastrosplenic ligament, spleen, phrenicosplenic ligament
Right: epiploic foramen, lesser omentum, greater sac
|Recesses||Superior omental recess
Inferior omental recess