Question

During which phase in the control of the digestive system would bicarbonate and bile be stimulated?
1. cephalic phase
2. gastric phase
3. intestinal phase

Answer 1

Answer:

3. intestinal phase

Explanation:

Intestinal phase starts at the first segment of the small intestinal where we have the duodenum. In this phase, the partly digested food called chyme stimulates the enteroendocrine cells of the duodenum causing the release of the secretin hormone. The secretin is one of the hormones in the duodenum. It is a peptide hormone that functions mainly in regulating the acidity of the duodenum.  The secretin hormone stimulates the secretion of bile in the liver and also initiates the secretion of bicarbonate in the pancreas in response to the acidity of the chyme.