yolk stalk

(redirected from vitellointestinal duct)
Also found in: Medical.
Related to vitellointestinal duct: Meckel's diverticulum

yolk stalk

n.
A narrow ductlike part that connects the yolk sac to the middle of the digestive tract of an embryo.

yolk′ stalk`


n.
a tubular connection between the yolk sac and the embryonic gut in the developing embryo.
[1895–1900]
References in periodicals archive ?
It is a true diverticulum found in the anti-mesenteric boarder comprising of all intestinal layers and is due to the persistence of the vitellointestinal duct. (1, 2) It is found in 2% of total population, at 2ft away from the ileo-caecal junction, 2 inch in length and has 2 types of common ectopic tissue (gastric and pancreatic).
This persistent part is normally present in early fetal life as the proximal part of the vitellointestinal duct, which usually disappears later.
Commonly encountered conditions include oesophageal atresia with or without tracheoesophageal fistula (TEF), imperforate anus with or without rectovesical or rectovaginal fistula, atresia or stenosis of various parts of GIT (duodenal, jejuna, ileal etc.), persistence of vitellointestinal duct impart (Meckel's Diverticulum) or whole, aganglionosis of colon (Hirschsprung's disease), malrotation of gut etc.