sigmoid flexure
Học thuậtThân thiện
Definition
- Noun:
- The S-shaped curve between the descending colon and the rectum: In human anatomy, the "sigmoid flexure" refers to the final, S-shaped portion of the large intestine, connecting the descending colon to the rectum. It is named for its resemblance to the Greek letter sigma (ς).
Usage
- The term "sigmoid flexure" is a specific anatomical term used primarily in medical, biological, and health-related contexts. It is a formal and technical term.
- It functions as a noun, typically as the subject or object of a sentence.
- Example:
Examples
- Noun:
- Diverticulitis often affects the sigmoid flexure.
- The barium enema X-ray clearly showed the looping path of the sigmoid flexure.
- A polyp was discovered in the patient's sigmoid flexure.
Advanced Usage
- The term is often used interchangeably with "sigmoid colon," though "sigmoid flexure" can emphasize the curved, flexible nature of this intestinal segment.
- In medical diagnostics, phrases like "involvement of the sigmoid flexure" or "disease at the sigmoid flexure" are common.
- The biopsy confirmed carcinoma in situ at the sigmoid flexure.
Variants and Related Words
- Sigmoid colon (n): The more common term for the same anatomical structure.
- The sigmoid colon is a common site for the formation of diverticula.
- Sigmoid (adj/n): Used as an adjective (e.g., ) or informally as a noun shorthand in medical contexts.
- The scope was advanced into the sigmoid.
Synonyms
- Sigmoid colon: The primary synonym.
- Pelvic colon: An older, less common term.
Related Phrases
- Sigmoidoscopy (n): A medical procedure to examine the sigmoid flexure and rectum.
- A sigmoidoscopy is used to screen for abnormalities in the sigmoid flexure.
- Sigmoid volvulus (n): A specific medical condition involving a twist of the sigmoid flexure.
- Sigmoid volvulus is a surgical emergency.
Noun
- the s-shaped curve between the descending colon and the rectum