Duodenum Flashcards
Definition
Shortest, widest most fixed part
From pylorus to duodenojejunal flexure
Reteroperitoneal organ
Location
Curved around head of pancreas c shaped
Above Level of umblicus
Opp l1 2 3 vert
Lenght
25 cm or 10 in
1st 2in
2nd 3in
3rd 4in
4th 1in
1st part
Begins at pylorus/ L1 lower border
Passes bck upw to rt
Sup duodenal flexure meets 2nd part
2nd part
L1 low border to L3 low border
Beg at sup duodenal flexure
Ends at inf duodenal flexure
Curves twd left
3rd part
Rt of low vorder of L3 vert
Beg at inf duodenal flexure
Passes horz and slighlty upw
Joins 4th part infront of abd aorta
4th part
From L3 up border to L2 up border
Runs upw just lt of aorta
Turns fwd to continue with jejunum
1st part relations
Peritoneal
Ab lesser omentum
Bel greater omentum
Visceral
A quadrate lobe of liver GB
P gastroduodenal art bile duct portal vein
Inf head neck of pancreas
2nd part realtions
Retroperitoneal, ant covered with peritoneum
Visceral
A rt lobe of liver trans colon, root of trans mesocolon, small int
P ant surf of kidney
Med head of pancreas bile duct
Lat rt colic flexure
3rd part relations