Which of the following activities occurs during the cephalic phase of gastric digestion?
A)CCK is secreted by the small intestine.
B)Chemoreceptors detect fatty acids in the duodenum.
C) Stretch receptors detect distension of the stomach.
D) Sight, smell, thought, or taste of food triggers parasympathetic impulses.

Question

Quizplus · Accepted Answer

The cephalic phase of gastric digestion is the initial phase that occurs before food even enters the stomach. It is triggered by the sight, smell, thought, or taste of food, which sends signals to the brain and triggers parasympathetic impulses that prepare the digestive system for food intake, including the secretion of gastric juices. CCK is secreted by the small intestine and is part of the intestinal phase of digestion. Chemoreceptors detecting fatty acids in the duodenum is also part of the intestinal phase. Stretch receptors detecting distension of the stomach occurs during the gastric phase of digestion.

Which of the Following Activities Occurs During the Cephalic Phase