Stomach & Duodenum 1 anatomy blood supply

STOMACH AND DUODENUM

1. ANATOMY

The stomach is the most dilated portion of the entire digestive

tubular system.

*  It has a fundus, body and antrum and its proximal end is

   continuous with the abdominal oesophagus. The antrum opens

   through the pylorus into the duodenum. (fig above)

*  The cardia (opening of the oesophagus) lies to the left of the

   midline at the level of the tenth dorsal vertebra.

*  The pylorus is situated to the right of the midline at the level

   of the space between first and second lumbar vertebra

   (transpyloric plane).

1.1 The blood supply of the stomach is mainly through six vessels

(fig above).

*  The left and right gastric arteries supply the lesser

   curvature.

*  The left and right gastroepiploic arteries supply the greater

   curvature.

*  The splenic artery through the short gastric arteries supplies

   the fundus

*  The gastroduodenal artery supplies the pylorus

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