Vascular System Development: Animation

This animated video portrays the development of the vascular system along with the relationship of recurrent laryngeal nerve with the pharyngeal arches and finally how the fetal circulation changes from that during intrauterine life to the one after birth. Timeline: 0:00 - Formation of blood islands and primitive blood vessels 1:05 - Remodeling of the venous return to the forming heart 1:59 - Fate of the vitelline and umbilical veins 2:24 - Remodeling of the cardinal venous system 3:48 - Summary of venous system development 3:57 - Development of pharyngeal arch arteries 4:45 - Relation of recurrent laryngeal nerve formation to pharyngeal arch artery development 5:32 - Fetal Circulation 6:37 - Changes in fetal circulation as a result of birth