nutrient absorption

Small intestine: structure, function

What is the duodenum? The duodenum is the beginning of the intestinal system and the first section of the small intestine. It is sharply separated from the stomach outlet (pylorus), about 25 to 30 centimetres long and has the shape of a C with the head of the pancreas in the round side. The sections … Small intestine: structure, function

Digestion: How It Works!

How does digestion work? Digestion begins as soon as solid or liquid food is taken into the mouth and ends with the excretion of indigestible remains of the food pulp (feces, stool). The average digestion time is 33 to 43 hours, depending on the type of food. Digestion in the mouth The first stage of … Digestion: How It Works!