The Transmigration of Blood Stem Cells Part 1 科学映像館

This video is from a team of Japanese researchers looking at the early development of the blood in the mouse embryo. There are beautiful images of single celled blood flow in tiny little vessels. Of special importance is the view of blood islands forming and beginning to move from the periphery of the embryo towards the heart. It also is an excellent illustration of the canal zones of the fluid body.