The transition between the stomach and duodenum is marked by

Prepyloric vein of mayo distinguishes pyloric canal from the first pa of the duodenum. The angular incisure or angular notch also called the incisura angularis, is a small anatomical notch on the stomach located on the lesser curvature of the stomach near the pyloric end. Its location varies somewhat in position with the state of distension of the internal organs The gastroduodenal aery is a blood vessel that arises from the common hepatic aery The hepatoduodenal ligament is the poion of the lesser omentum extending between the poa hepatis of the liver and the superior pa of the duodenum Reference: SRB 5 th edition page no.815