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Questions and Answers
What is the main function of the Sphincter of Oddi in relation to bile?
What is the main function of the Sphincter of Oddi in relation to bile?
- It contracts to prevent bile reflux into the gallbladder.
- It reabsorbs bile acids in the ileum for recycling.
- It relaxes to allow bile flow into the duodenum. (correct)
- It secretes bicarbonate to neutralize bile acids.
Which process mainly occurs in the lumen of the small intestine for fat assimilation?
Which process mainly occurs in the lumen of the small intestine for fat assimilation?
- Formation of micelles conjugated with bile acids
- Esterification to form triglycerides (correct)
- Conjugation of secondary bile acids by colonic bacteria
- Reabsorption of bile acids in the ileum
What happens to ~5% of conjugated bile acids in the enterohepatic circulation?
What happens to ~5% of conjugated bile acids in the enterohepatic circulation?
- They are stored in the gallbladder.
- They are broken down by pancreatic lipase.
- They are reabsorbed in the jejunum.
- They are lost in the feces. (correct)
Which molecule is responsible for delivering fat to tissues via lymphatics for utilization?
Which molecule is responsible for delivering fat to tissues via lymphatics for utilization?
How do bile acids mainly assist in the assimilation of fat?
How do bile acids mainly assist in the assimilation of fat?
What is the primary function of the acinus in the liver?
What is the primary function of the acinus in the liver?
Which amino acid is used for conjugation with primary bile acids in dogs?
Which amino acid is used for conjugation with primary bile acids in dogs?
Which part of the gastrointestinal tract plays a significant role in reabsorbing 95% of conjugated bile acids?
Which part of the gastrointestinal tract plays a significant role in reabsorbing 95% of conjugated bile acids?
What is the rate-limiting step in the synthesis of primary bile acids?
What is the rate-limiting step in the synthesis of primary bile acids?
Where are bile acids stored before being released into the intestine for digestion?
Where are bile acids stored before being released into the intestine for digestion?
Which species requires Taurine as an essential amino acid for bile acid conjugation?
Which species requires Taurine as an essential amino acid for bile acid conjugation?
What is the role of cholecystokinin (CCK) in gallbladder contraction?
What is the role of cholecystokinin (CCK) in gallbladder contraction?
In which species is the sphincter of Oddi less well-defined and constantly secreting bile into the intestinal tract?
In which species is the sphincter of Oddi less well-defined and constantly secreting bile into the intestinal tract?
What is a key difference in bile acid metabolism between dogs/cats and ruminants/pigs/horses?
What is a key difference in bile acid metabolism between dogs/cats and ruminants/pigs/horses?
Which animal species does not have a gallbladder and has a weak sphincter of Oddi?
Which animal species does not have a gallbladder and has a weak sphincter of Oddi?
What is the significance of bile acids in systemic circulation for liver function?
What is the significance of bile acids in systemic circulation for liver function?
What is the effect of special considerations like fasting on bile samples for liver function tests?
What is the effect of special considerations like fasting on bile samples for liver function tests?
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