Sigmoid
Sigmoid
Sigmoid (/saɪɡˈmoʊɪd/; from the Greek word "σίγμα", which means "sigma") is a term used in various fields of study, including mathematics, science, and medicine. In the medical field, it often refers to the Sigmoid colon, a part of the large intestine that is shaped like a Greek sigma or Latin "S".
Etymology
The term "sigmoid" is derived from the Greek word "σίγμα", which translates to "sigma" in English. This is due to the sigma-like or "S" shape that is characteristic of certain structures and functions in various fields, including the Sigmoid colon in medicine.
Medical Usage
In medicine, the term "sigmoid" is most commonly used to refer to the Sigmoid colon, which is the part of the large intestine immediately after the descending colon and before the rectum. The sigmoid colon is so named because of its curved, S-like shape.
The term "sigmoid" can also refer to other S-shaped structures in the body, such as the Sigmoid sinus, a venous sinus in the skull that drains into the internal jugular vein.
Related Terms
- Sigmoid colon: The part of the large intestine that is S-shaped and connects the descending colon to the rectum.
- Sigmoid sinus: A venous sinus in the skull that drains into the internal jugular vein.
- Sigmoidoscopy: A diagnostic procedure that uses a flexible tube with a light and camera to examine the sigmoid colon.
- Sigmoidectomy: A surgical procedure to remove part or all of the sigmoid colon.
External links
- Medical encyclopedia article on Sigmoid
- Wikipedia's article - Sigmoid
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