IE users: please get the latest browser version at Microsoft Internet Explorer Home Page
if yot already have the latest browser version please verify that your browser settings is not in compitabily mode
Embryonic capillary plexus are small blood vessels which form following aggregation of blood islands, their rapid sprouting, acquisition of a lumen, and unification. The plexus gradually take on a horseshoe shape. This plexus is formed within the first three weeks of gestation in humans.
The establishment of endothelial cells in mammals occurs via both extraembryonic and intraembryonic vasculogenesis.