![Superior part](https://admin.anatomy.app//Media/slides/superior-part-of-duodenum-duodenal-bulb-2-4603_medium.jpg)
Unlock with Premium
Previous slide
5 / 11
Next slide
The superior part of the duodenum is the most proximal portion and extends from the pyloric opening of the stomach to the gallbladder. This part is short - only around 2 inches (5 cm) long. It lies anterolateral to the body of the first lumbar vertebra (L1) (Read more!).