sigmoid flexure

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Related to sigmoid flexure: sigmoid colon, colon sigmoideum

sigmoid flexure

(Zoology) zoology an S-shaped curve, as in the necks of certain birds

Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

sig′moid flex′ure

1. an S-shaped curve in a body part.

2. Also called sig′moid co′lon. the S-shaped curve of the large intestine where the descending colon joins the rectum in humans.

[1780–90]

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Noun

sigmoid flexure - the s-shaped curve between the descending colon and the rectum

sigmoid colon

large intestine - beginning with the cecum and ending with the rectum; includes the cecum and the colon and the rectum; extracts moisture from food residues which are later excreted as feces

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References in periodicals archive ?

Frequently the calculi get lodged between the ischial arch and sigmoid flexure and in few cases may obstruct at the neck of urinary bladder (Tyagi and Singh, 2015).

Surgical Management of Urolithiasis in a Calf

Uroliths were observed in the penile urethra near the sigmoid flexure (Figure 1C).

Urolithiasis with uroperitoneum and hydronephrosis in grazing cattlein Southern Brazil/Urolitiase com uroperitonio e hidronefrose em bovinos a campo no sul do Rio Grande do Sul

Sigmoid is too snakelike, and the phrase it gives its name to, sigmoid flexure, refers to "the contracted and crooked part of the colon immediately above the rectum," according to Merriam-Webster.