Taenia coli
Taenia coli
Taenia coli (pronounced: tee-nee-uh koh-lie) is a longitudinal band of smooth muscle in the large intestine. It is one of the three bands into which the outer layer of the muscularis externa is divided.
Etymology
The term "Taenia coli" originates from the Latin word "taenia", meaning "ribbon", and "coli", referring to the colon. Thus, the term literally translates to "ribbon of the colon".
Anatomy
The Taenia coli are three separate longitudinal ribbons of smooth muscle on the outside of the ascending, transverse, descending and sigmoid colon. They are visible, and can be seen just below the serosa or fibrous tissue of the colon. The bands converge at the root of the vermiform appendix.
Function
The primary function of the Taenia coli is to cause the walls of the large intestine to pucker into sacculations, also known as haustra. These haustra facilitate the movement and absorption of fecal matter.
Related Terms
- Haustra: Small pouches in the colon caused by sacculation, which give the colon its segmented appearance.
- Muscularis externa: A region of muscle in the walls of the intestines that is responsible for gut movement.
- Vermiform appendix: A small, finger-like projection connected to the cecum, from which the taenia coli originate.
See Also
External links
- Medical encyclopedia article on Taenia coli
- Wikipedia's article - Taenia coli
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