Which part of the digestive system is responsible for absorbing most of the nutrients?

Answer 1

The digestive system is made up of the digestive tract-a series of hollow organs joined in a long, twisting tube from the mouth to the anus-and other organs that help the body break down and absorb food (see figure).

Organs that make up the digestive tract are the mouth, esophagus, stomach, small intestine, large intestine-also called the colon-rectum, and anus. Inside these hollow organs is a lining called the mucosa. In the mouth, stomach, and small intestine, the mucosa contains tiny glands that produce juices to help digest food. The digestive tract also contains a layer of smooth muscle that helps break down food and move it along the tract.

Two "solid" digestive organs, the liver and the pancreas, produce digestive juices that reach the intestine through small tubes called ducts. The gallbladder stores the liver's digestive juices until they are needed in the intestine. Parts of the nervous and circulatory systems also play major roles in the digestive system.

Answer 2

The small intestine.

The wall of small intestine have small finger-like projections called villi which in turn have projections called microvilli. These structures increase the surface area for absorption and hence absorb all the essential nutrients into the blood.

Answer 3

The small intestine is responsible for absorbing most of the nutrients from food. It has a large surface area due to its villi and microvilli, which are specialized for nutrient absorption through the intestinal wall into the bloodstream.

Answer 4

which system transports nutrients absorbed from the digestive system