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The taeniae coli (also teniae coli or tenia coli) are three separate longitudinal ribbons (taeniae meaning ribbon in Latin) 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. There are three teniae coli: mesocolic, free and omental ...
The teniae coli run the length of the colon. A proposed explanation for the existence of haustra is that the colon becomes sacculated between the teniae coli because the taenia coli are shorter than the colon. However, it is now more commonly accepted that the haustra form because of enteric nervous system activity. [1]
Haustra – bulges caused by contraction of taeniae coli; Epiploic appendages – small fat accumulations on the viscera; The taenia coli run the length of the large intestine. Because the taenia coli are shorter than the large bowel itself, the colon becomes sacculated, forming the haustra of the colon which are the shelf-like intraluminal ...
In the colon, for example, the muscular layer is much thicker because the faeces are large and heavy and require more force to push along. The outer longitudinal layer of the colon thins out into 3 discontinuous longitudinal bands, known as taeniae coli (bands of the colon). This is one of the 3 features helping to distinguish between the large ...
Taenia or tænia, from Greek ταινία (tainía) and Latin taenia (both meaning 'tape' or 'ribbon') may refer to: Anatomy. Taenia coli, ...
Unlike other portions of the colon, the rectum does not have distinct taeniae coli. [6] The taeniae blend with one another in the sigmoid colon five centimeters above the rectum, becoming a singular longitudinal muscle that surrounds the rectum on all sides for its entire length. [7] [6]
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This article incorporates text in the public domain from page 1183 of the 20th edition of Gray's Anatomy (1918) ^ P.H.S.Silver (1955). "Observation on the Valves of Houston in the human embryo and foetus" .