Param Publication
Grow Career Publication
Digestion in humans
The human digestive system consists of the gastrointestinal tract plus the accessory organs of digestion (the tongue, salivary glands, pancreas, liver, and gallbladder). Digestion involves the breakdown of food into smaller and smaller components, until they can be absorbed and assimilated into the body.
The process of digestion has three stages: the cephalic phase, the gastric phase, and the intestinal phase.The first stage, the cephalic phase of digestion, begins with secretions from gastric glands in response to the sight and smell of food.The second stage of digestion begins in the stomach with the gastric phase.
The third stage begins in the duodenum with the intestinal phase, where partially digested food is mixed with a number of enzymes produced by the pancreas.
