yolk stalk - définition. Qu'est-ce que yolk stalk
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Qu'est-ce (qui) est yolk stalk - définition

NARROW TUBE CONNECTING THE YOLK SAC WITH THE MIDGUT OF THE EMBRYO
Yolk-stalk; Embryonic yolk stalk; Omphalomesenteric duct; Obliteration; Yolk duct; Ductus vitellinus; Vitelline ducts; Omphalomesenteric ducts; Ductus omphaloentericus

Vitelline duct         
In the human embryo, the vitelline duct, also known as the vitellointestinal duct, the yolk stalk, the omphaloenteric duct, or the omphalomesenteric duct, is a long narrow tube that joins the yolk sac to the midgut lumen of the developing fetus.
obliteration         
n.
Effacement, erasure, extinction, blotting out.
obliteration         

Wikipédia

Vitelline duct

In the human embryo, the vitelline duct, also known as the vitellointestinal duct, the yolk stalk, the omphaloenteric duct, or the omphalomesenteric duct, is a long narrow tube that joins the yolk sac to the midgut lumen of the developing fetus. It appears at the end of the fourth week, when the yolk sac presents the appearance of a small pear-shaped vesicle (the umbilical vesicle).