Gallbladder and Pancreas Flashcards
Sphincter of Oddi
opening to the duodenum that controls the flow of bile fluid. The closing of the sphincter cause bile to back up and flow into the gallbladder
Cholangiocytes
simple cuboidal cells that line the hepatic, cystic and common bile ducts.
Secretin (gallbladder)
stimulates cholangiocytes to secrete water and HCO3- into the lumen of the bile ducts
Gallbladder
stores bile, concentrates it through water absorption, and releases it into the duodenum. NO bile synthesis occurs in the gallbladder.
Bile
Promotes reabsorption of fat by making them more soluble and it excretes wastes. It is a carrier for bilirubin into the duodenum .
Cystic duct
duct that is immediately adjacent to the gallbladder
Spiral fold
fold within the middle of the cystic duct that keeps the duct open at all times
Cholecystokinin (gallbladder)
Hormone that causes the gallbladder to contract and release bile, and causes the sphincter of Oddi to relax and allow the bile to inter the duodenum.
Islet of Langerhans
sections of the pancreas that produce various endocrine enzymes and hormones.
Centroacinar cells
Terminal ends of the intercalated ducts. Secrete HCO3- rich fluid into the ducts
Intercalated ducts
drain the enzymes produced by the pancreatic acini
Proenzymes
enzymes that are not immediately active. Not active yet because they might digest the contents of the pancreas
Secretin (pancreas)
produced by the duodenum and targets centroacinar cells and intercalated ducts to promote water and HCO3- secretion
Cholecystokinin (pancreas)
stimulates enzyme secretion from the exocrine pancreatic acinar cells
Alpha cells
secrete glucagon which increases blood glucose levels
