Entry from US English dictionary
A tubular connection between the yolk sac and the digestive tract of a developing embryo.
- During this phase of development, the midgut remains attached to the yolk stalk or vitelline duct.
- The yolk stalk is also called the umbilical duct, vitelline duct, or oomphalomesenteric duct.
- The yolk stalk is the narrow connection between the endoderm of the embryo and the yolk sac.
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