the lower part of your stomach is called pylorus.
the lower part of your stomach is called pylorus.
whats the lower part of your stomach called?
pylorus
in severe duodenal ulcers it may be necessary to remove the lower portion of the stomach called the pylorus and the upper portion of the small intestine called the duodenum. if there is a sufficient portion of the upper duodenum remaining a billroth i procedure is performed, where the remaining portion of the stomach is reattached to the duodenum before the bile duct and the duct of the pancreas. if the stomach cannot be reattached to the duodenum a billroth ii is performed, where the remaining portion of the duodenum is sealed off, a hole is cut into the next section of the small intestine called the jejunum and the stomach is reattached at this hole. as the pylorus is used to grind food and slowly release the food into the small intestine, removal of the pylorus can cause food to move into the small intestine faster than normal, leading to gastric dumping syndrome.
gastrectomy
as the stomach rotates during early development, the dorsal and ventral mesentery rotate with it; this rotation produces a space anterior to the expanding stomach called the greater sac, and a space posterior to the stomach called the lesser sac. after this rotation the dorsal mesentery thins and forms the greater omentum, which is attached to the greater curvature of the stomach. the ventral mesentery forms the lesser omentum, and is attached to the developing liver. in the adult, these connective structures of omentum and mesentery form the peritoneum, and act as an insulating and protective layer while also supplying organs with blood and lymph vessels as well as nerves. arterial supply to all these structures is from the celiac trunk, and venous drainage is by the portal venous system. lymph from these organs is drained to the prevertebral celiac nodes at the origin of the celiac artery from the aorta.
foregut