File:Embryonic Circulations.jpg: Revision history

From Embryology

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26 August 2014

17 August 2011

4 May 2010

14 March 2010

  • curprev 10:2810:28, 14 March 2010Z3212774 talk contribs 522 bytes +522 category:Heart ILP The three early embryonic circulations. Three paired veins drain into the primordial heart tube: vitelline veins (returning poorly oxygenated blood from the yolk sac), umbilical veins (carrying well-oxygenated blood from the primor