Sigmoid colon

Definition

The sigmoid colon is the section of the large intestine that connects the descending colon to the rectum. It is an S-shaped segment that facilitates the movement and storage of fecal matter before it is expelled.

Related terms

Large Intestine:

The last part of the gastrointestinal tract that absorbs water and salts from material that has not been digested as food, turning it into solid waste.

Rectum:

The final straight portion of the large intestine in humans and some other mammals, which ends in the anal canal.

Fecal Matter: Solid or semisolid remains of food that could not be digested or absorbed in the small intestine, expelled through defecation