High School

Dr. Lorraine explains to Mr. Volpe that H. pylori decreases the buffering effect in his duodenum. How does the duodenum buffer the acidic gastric chyme?

Option 1: By secreting pepsin
Option 2: By releasing gastrin
Option 3: By producing bile
Option 4: By releasing bicarbonate-rich pancreatic juice

Answer :

Final answer:

The duodenum buffers the acidic gastric chyme by producing bicarbonate-rich pancreatic juice.

Explanation:

The duodenum buffers the acidic gastric chyme by producing bicarbonate-rich pancreatic juice. When acidic chyme enters the duodenum, the hormone secretin is released, which stimulates the pancreas to produce and deliver bicarbonate-rich pancreatic juice to the duodenum. The bicarbonate in the pancreatic juice neutralizes the acidic chyme, helping to maintain a suitable pH for the digestive enzymes in the small intestine.

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