Anatomy Of Si & Li Flashcards
Longest part of alimentary canal
Small intestine
Small intestine extends from _____ to _____
pylorus
ileocecal junction
Most absorption take place in
Small intestine
Small intestine is divided into
Duodenum
Jejunum
Ileum
Has Fixed parts and has no mesentery
Duodenum
Has free parts and has mesentery
Jejunum
Ileum
Duodenum shape
Duodenum length
Duodenum peritoneal covering
C- shape - 10 inches
Retroperitoneal covering
Duodenum beginning & termination
Pyloro-duodenal junction
Duodenal-jejunal flexure
Duodenum first part (superior) length & level
2 inches
L1 ( transpylori c plane)
Duodenum second part (descending) length & level
3 inches
Descends from L1 - L3
Duodenum third part (Horozontal) length & level
4 inches
L3 ( subcostal plane)
Duodenum fourth part (Ascending) length & level
1 inch
Ascends from L3 to L2
Posterior Relations of duodenum first part (Superior)
Bile duct
Gastroduodeneal A.
Portal vein
Relations of duodenum second part (Descending)
Anterior: liver, transverse colon, Small intestine
Posterior: Right kidney
Lateral: Right clonic flexure
Medial: pancreas
Opening of duodenum second part (Descending)
- Common opening of bile duct & main pancreatic duct: on summit of major duodenal papilla.
- Opening of accessory pancreatic duct (one inch higher): on summit of minor duodenal papilla.