Biology Practice Problems Digestion Practice Problems Solution: Gastric secretions have 3 "phases" of regulation. ...

Solution: Gastric secretions have 3 "phases" of regulation. List and explain each, including the stimuli and the response(s) for EACH phase.

Problem

Gastric secretions have 3 "phases" of regulation. List and explain each, including the stimuli and the response(s) for EACH phase.

Solution

Three phases of gastric secretion regulation are as follows: 

  • Cephalic Phase: In this phase, the nerve impulses coming from the sensation of sight, smell, taste of the food and tactile sensation in the mouth, travels to the brainstem and triggers the stomach to produce gastric juices and gastrin.
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