Final answer:
The Vitellointestinal duct, also called the yolk stalk or omphalomesenteric duct, is an embryological structure that connects the midgut to the yolk sac during early fetal development.
Step-by-step explanation:
Another name for the Vitellointestinal duct is the yolk stalk or omphalomesenteric duct. This embryological structure connects the midgut of the developing embryo to the yolk sac and it connects the midgut to the yolk sac during embryonic development.. It is a critical connection during early development and begins to atrophy as the fetus grows, typically closing off and disappearing entirely before birth. If it remains, it can lead to an abnormality or pathology requiring medical attention.