ANATOMY

Detailed explanation-1: -The jejunum and ileum lower in the intestine are mainly responsible for the absorption of nutrients into the bloodstream.

Detailed explanation-2: -Regions of the digestive system can be divided into two main parts: the alimentary tract and accessory organs.

Detailed explanation-3: -The purpose of the large intestine is to absorb water and salts from the material that has not been digested as food, and get rid of any waste products left over.

Detailed explanation-4: -The large intestine is the portion of the digestive system most responsible for absorption of water from the indigestible residue of food.

Detailed explanation-5: -The small intestine is the most important absorbing organ in the GI tract. About 90% of nutrient absorption takes place in the small intestine.