Haustra

Definition

Haustra are the small pouches caused by sacculation (sac formation) in the colon, giving it a segmented appearance. They are formed due to the longitudinal muscle bands of the colon, called taeniae coli, contracting and pulling on the colon wall.

Related terms

Taeniae coli: Three distinct longitudinal bands of smooth muscle on the surface of the colon responsible for creating haustra.

Colon:

The final section of the digestive system, where water is absorbed and stool is formed.

Fecal matter: Waste material remaining after digestion and absorption of nutrients in the gastrointestinal tract, ready for excretion