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Laboratory 39. Intestines and Pancreas
Step 13. Large Intestine

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Although the size of the large bowel varies among subjects, it has three distinctive features that distinguish it from the small intestine. These are the presence of:

The taeniae coli are three narrow but distinct longitudinal bands of smooth muscle which run along the entire length of the cecum and colon. The three taeniae coli converge at the base of the vermiform appendix on the cecum. This is a useful anatomical and clinical feature which can be used to identify the base of the vermiform appendix in the gross anatomy laboratory or during surgery. The teniae coli are not present on the rectum, anal canal and vermiform appendix.

Links and References:
Grant's: 2.77
Netter: 264, 265, 267
Rohen/Yokochi: 290, 298