About two-thirds of total gastric secretion occur during the gastric phase.
Gastric secretion is responsible for the initiation of digestion of food. It also makes the food soluble and chewable. Approximately 1.5 liters of gastric juices are secreted everyday. Stimulation of the vagal nerve is responsible for the secretion of gastric juice.
The gastric phase of gastric secretion is the one which stimulates the release of gastric juices during the swallowing of food. There are two methods for the stimulation. First is the stretching of stomach and second is the change in the pH . The pH is increased for the stimulation.
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