![cover image](https://wikiwandv2-19431.kxcdn.com/_next/image?url=https://upload.wikimedia.org/wikipedia/commons/thumb/8/8c/Gray30.png/640px-Gray30.png&w=640&q=50)
Vitelline duct
From Wikipedia, the free encyclopedia
In the human embryo, the vitelline duct, also known as the vitellointestinal duct,[1] the yolk stalk,[1] the omphaloenteric duct,[1] or the omphalomesenteric duct,[1] is a long narrow tube that joins the yolk sac to the midgut lumen of the developing fetus.[2] It appears at the end of the fourth week, when the yolk sac (also known as the umbilical vesicle) presents the appearance of a small pear-shaped vesicle.