Cephalic phase

Definition

The cephalic phase is the early stage of digestion that begins before food enters the stomach, initiated by the sight, smell, thought, or taste of food. This phase triggers the release of gastric juices in preparation for digesting food.

Related terms

Gastric juice: A mixture of hydrochloric acid, digestive enzymes, and mucus produced by glands in the stomach lining to aid in digestion and protect against pathogens.

Digestion: The process by which food is broken down into smaller components that can be absorbed into the bloodstream and utilized by the body.

Gastrointestinal tract: The series of organs forming a continuous passage from the mouth to the anus where digestion and absorption of food occur