Anatomy and Cell Biology 2221 Lecture Notes - Lecture 11: Portal Vein, Superior Mesenteric Vein, Superior Mesenteric Artery
9 Dec 2016
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Liver: processes nutrients, secretes bile, hepatic portal system. Four lobes right, left, quadrate (beside gallbladder), caudate. Two supporting ligaments falciform ligament (anterior to interior of abdomen), ligamentum teres (leads to umbilicus) Hepatic portal vein (digestive system), hepatic artery. Process blood-borne nutrients: store glucose (as glycogen, convert amino acids to protein. Production of bile: storage in gallbladder, produced by hepatocytes. Union of superior mesenteric vein and splenic vein: hepatic portal vein. Specialized to pick up nutrients from stomach/intestines. Deliver to liver for processing and storage. Portal triad bile duct, branch of hepatic portal vein, branch of hepatic artery. Cholecystitis: within gallbladder, neck or cystic duct, common bile duct. Acute: sudden, severe upper abdominal pain, inflammation without infection. Chronic: repeated gallbladder inflammation, risk of damage to organ. Endocrine: pancreatic islets insulin and glucagon. Exocrine: pancreatic acini pancreatic juice, secrete > 1l of digestive enzymes/day, pancreatic amalayse, protein enzymes, lipase (fat), dna and rna digestive enzymes.
