Also found in: Dictionary, Thesaurus, Legal, Encyclopedia.
Related to body stalk: neurulation
the extraembryonic precursor of the umbilical cord by which the caudal end of the embryo is attached to the chorion.
Synonym(s): body stalk
the elongated part of the embryo that is connected to the chorion. See also allantois.
A bridge of mesoderm that connects the caudal end of the embryo with the chorion. It later forms the structural tissue of the umbilical cord.
See also: stalk