Answer :
The phase that controls how fast the stomach empties is the Gastric phase.
During the Gastric phase, the stomach regulates the rate at which food leaves the stomach and enters the small intestine. This phase is triggered by the presence of food in the stomach. When food enters the stomach, stretch receptors in the stomach wall are activated, signaling the stomach to release gastric juices and begin the process of digestion. Additionally, the release of hormones like gastrin helps in regulating the emptying of the stomach.
In contrast, the Cephalic phase refers to the preparation for eating and the initial response to the sight, smell, or even thought of food. This phase triggers the release of saliva and gastric juices in anticipation of food intake.
The Intestinal phase occurs in the small intestine and controls the rate of gastric emptying by regulating the movement of chyme (partially digested food) from the stomach into the small intestine.
Therefore, when it comes to controlling the speed at which the stomach empties, the Gastric phase plays a crucial role in this digestive process.
