1 — Duodenum, inferior part; horizontal part; transverse part; 2 -Duodenum, descending part; 3 — Duodenum, superior part; 4 — Duodenum, ampulla; duodenal cap; 5 — Pylorus; 6 — Stomach, pyloric part; 7 — Duodenum, ascending part
1 — Duodenum, inferior part; horizontal part; transverse part; 2 -Duodenum, descending part; 3 — Duodenum, superior part; 4 — Duodenum, ampulla; duodenal cap; 5 — Pylorus; 6 — Stomach, pyloric part; 7 — Duodenum, ascending part