| Taenia coli | |
|---|---|
| Iliac colon, sigmoid or pelvic colon, and rectum seen from the front, after removal of pubic bones and bladder. (Taenia coli not labeled, but visible at center.) | |
| Female pelvis and its contents, seen from above and in front. (Taenia coli not labeled, but visible at right.) | |
| Latin | taeniae coli |
| Gray's | subject #249 1186 |
The taenia coli (also teniae coli) are three separate longitudinal ribbons of smooth muscle on the outside of the ascending, transverse, descending and sigmoid colons. They are visible, and can be seen just below the serosa or fibrosa. They are the Mesocolic, Free and Omental Coli. The teniae coli contract lengthwise to produce the haustra, the bulges in the colon.
The bands converge at the root of the vermiform appendix and the rectum.
These bands correspond to the outer layer of the muscularis externa, in other portions of the digestive tract.
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