Learn more about the role of secretin in regulating pancreatic bicarbonate secre

Question

Learn more about the role of secretin in regulating pancreatic bicarbonate secretion by completing each sentence using the terms listed at left. pancreas An increase in from the chyme leaving the sphincter of Oddi stimulates an increase in the secretion of secretin. secretin Secretin is secreted from cells within the enzymes Secretin stimulates the secretion of within the ofrom duct cells stomach This increases the flow of bicarbonate into the small intestine through the acid Once inside the small intestine, the bicarbonate functions to neutralize intestinal acid, which via negative feedback, inhibits secretion. bicarbonate gallbladder small intestine

Explanation / Answer

An increase in acid from the chyme leaving the stomach increases the secretion of secretin

Secretin is secreted from the cells within the small intestine.

Secretin stimulates the secretion of enzymes from the duct cells within the pancreas.

This increases the secretion of bicarbonate into the small intestine through the sphincter of oddi.

Once inside the small intestine, the bicarbonate neutralize intestinal acid, which via by negative feedback, inhibits secretin secretion.

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