Haustra

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Haustra

Haustra (pronounced: haw-stra) are small pouches caused by sacculation (sac formation) in the colon, giving it a segmented appearance. They are a distinguishing feature of the large intestine.

Etymology

The term "haustra" is derived from the Latin word "haustrum," which means "scoop" or "pouch." This term is used in anatomy to describe the pouch-like appearance of the colon.

Anatomy

Haustra are formed by the taeniae coli, three longitudinal bands of smooth muscle on the outside of the ascending, transverse, descending and sigmoid colon. The muscle tone of the taeniae coli creates the haustra.

Function

The primary function of the haustra is to facilitate the movement and storage of fecal matter in the colon. They allow for the slow propulsion of fecal matter towards the rectum.

Related Terms

  • Colon: The large intestine, where haustra are located.
  • Taeniae coli: The three bands of muscle that form the haustra.
  • Sacculation: The process of forming a sac or pouch, which is how haustra are formed.

See Also

External links

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