Mucosa and Musculature of Small Intestine Anatomy
Hepatic artery proper, Gastroduodenal
artery, Right gastric artery, Common hepatic artery, Pyloric orifice (Common) bile duct, Accessory pancreatic duct (of Santorini) (Main) pancreatic duct
(of Wirsung), Duodenojejunal flexure, Jejunum, Ascending (4th) part, Superior mesenteric artery and vein, Hepatic portal vein (Common) bile duct, Right free margin of lesser omentum (hepatoduodenal ligament), Superior duodenal flexure, Superior
(1st) part (ampulla, or duodenal bulb) (no circular folds),
Descending (2nd) part, Minor duodenal papilla (inconstant), Circular folds (valves of Kerckring), Major duodenal papilla (of Vater), Head of pancreas, Inferior (horizontal, or 3rd) part, Inferior duodenal flexure, Jejunum, Mesentery, Anastomotic loop (arcade) of jejunal arteries, Straight arteries, Serosa (visceral peritoneum), Longitudinal muscle layer, Circular muscle layer, Submucosa, Mucosa, Circular folds (valves of Kerckring), Solitary lymphoid nodule, Ileum, Mesentery, Anastomotic
loops (arcades) of ileal arteries, Straight arteries, Serosa (visceral peritoneum), Longitudinal muscle layer, Circular muscle layer, Submucosa, Mucosa, Circular folds (valves of Kerckring), Solitary lymphoid nodules, Aggregate lymphoid nodules (Peyer’s patches).
