A bridge of mesoderm connecting the caudal end of the young embryo with the trophoblastic tissues; the precursor of the umbilical cord. [ http://medical-dictionary.thefreedictionary.com/ ]

This is just here as a test because I lose it

Term information

editor note

TODO - this is currently defined as a bridge of mesoderm, but in EHDAA2 is extraembryonic structure split into mesoderm and blood vessels