PATHOLOGY

Detailed explanation-1: -The small intestine absorbs most of the nutrients in your food, and your circulatory system passes them on to other parts of your body to store or use. Special cells help absorbed nutrients cross the intestinal lining into your bloodstream.

Detailed explanation-2: -The small intestine has three parts: the duodenum, jejunum, and ileum. It helps to further digest food coming from the stomach.

Detailed explanation-3: -The small intestine is good for absorption since it has a large inner surface area. This is formed due to the plicae circulares which project many tiny finger-like structures of tissue called villi. The individual epithelial cells also have finger-like projections, which are called known as microvilli.