THORAX ABDOMEN AND PELVIS

Detailed explanation-1: -A long tube-like organ that connects the stomach and the large intestine. It is about 20 feet long and folds many times to fit inside the abdomen. The small intestine has three parts: the duodenum, jejunum, and ileum. It helps to further digest food coming from the stomach.

Detailed explanation-2: -The first part, called the duodenum, connects to the stomach. The middle part is the jejunum. The third part, called the ileum, attaches to the colon.

Detailed explanation-3: -Each section is designed to absorb different nutrients, as well as water. The thick mucosa has so many folds and projections that its surface area is about 100 times as broad as the surface area of your skin. This is why 95% of the carbohydrates and protein you consume are absorbed in the small intestine.

Detailed explanation-4: -The small intestine (small bowel) lies between the stomach and the large intestine (large bowel) and includes the duodenum, jejunum, and ileum. The small intestine is so called because its lumen diameter is smaller than that of the large intestine, although it is longer in length than the large intestine.