Midgut Flashcards
What is the biliary system?
Organs and ducts which create, store and release bile into descending portion of duodenum
Give an account of the ducts in the biliary system
- Left and right hepatic ducts form common hepatic duct
- Common hepatic duct and cystic duct form common bile duct
- Common bile duct joins pancreatic duct to enter duodenum through ampulla of Vater
Where does bile originate?
Hepatocytes
Where is bile stored?
Gallbladder
What is the function of bile salts?
Emulsify fats and facilitate intestinal absorption
What is the function of the sphincters in the common bile duct and main pancreatic duct?
Ensure bile only flows in 1 direction
Where does the superior mesenteric artery supply?
Small intestine and first 2/3 of large intestine
What are 5 main arteries given by the superior mesenteric artery?
- Middle colic
- Right colic
- Ileocolic
- Jejunal
- Ileal
What supplies blood to duodenum?
Superior and inferior pancreaticoduodenal arteries
What supplies blood to jejunum?
Jejunal arteries
What supplies blood to ileum?
Ileal arteries
What supplies blood to caecum?
Ileocolic artery
What supplies blood to appendix?
Appendicular artery from ileocolic artery
What supplies blood to sigmoid colon?
Sigmoid arteries
What supplies blood to rectum?
Superior rectal artery