Intestines

The intestines are a vital part of the digestive system, responsible for the absorption of nutrients and the elimination of waste from the body. The intestines are divided into two main sections: the small intestine and the large intestine.

Small Intestine

The small intestine is where the majority of digestion and nutrient absorption takes place. It is divided into three parts: the duodenum, the jejunum, and the ileum. The inner lining of the small intestine is covered in tiny finger-like projections called villi, which greatly increase the surface area for nutrient absorption.

Large Intestine

The large intestine, also known as the colon, is responsible for absorbing water and electrolytes from the remaining indigestible food matter, and for the formation and elimination of feces. It is divided into four main parts: the cecum, the colon (which is further divided into the ascending, transverse, descending, and sigmoid colon), the rectum, and the anus.

Function of the Intestines

The intestines play a crucial role in the digestion and absorption of nutrients from food. The small intestine is where most of the chemical digestion and absorption occur, while the large intestine primarily reabsorbs water and electrolytes, and forms and eliminates feces.