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.

Detailed explanation-2: -Small intestine. The walls of the small intestine absorb water and the digested nutrients into your bloodstream. As peristalsis continues, the waste products of the digestive process move into the large intestine.

Detailed explanation-3: -Where is the small intestine located? The small intestine is coiled inside the lower abdominal cavity beneath the stomach. The large intestine surrounds it, framing the edges of the abdominal cavity.

Detailed explanation-4: -The lining of the small intestinal mucosa is very highly specialized for maximizing digestion and absorption of nutrients. The lining is highly folded to form microscopic finger-like projections called villi which increase the surface area to help with absorption.