I created this medical animation to test out some plugin and workflow ideas. The Capillary was created by painting splines onto a rough sculpt. I then brought that geometry into Zbrush to connect, polygroup and UV. To create the Endothelial Cells I ran a voronoi fracture on the geometry and then brought it back into Zbrush for clean up.

Red Blood Cell Flow was created with Tyflow...which is a beautiful thing :)