Keywords:
afferent hepatic vein,
anterior cerebral plexus,
axillary vein,
azygos vein,
ductus arteriosus,
efferent hepatic veins,
external jugular vein,
inferior vena cava,
internal jugular vein,
jugular lymph sac,
maxillary vein,
middle cerebral plexus,
omphalomesenteric vein,
posterior cerebral plexus,
stem of posterior cerebral plexus,
subclavian vein,
superior mesenteric vein,
umbilical vein
Source: The Virtual Human Embryo.