Angioblast 4710814 48023407 2006-04-11T22:21:54Z Elkman 346341 +cat [[Blood vessels]] first make their appearance in several scattered vascular areas which are developed simultaneously between the [[entoderm]] and the [[mesoderm]] of the [[yolk-sac]], i. e., outside the body of the [[embryo]]. Here a new type of cell, the '''angioblast''' or '''vasoformative cell''', is differentiated from the mesoderm. These cells as they divide form small, dense [[syncytial]] masses which soon join with similar masses by means of fine processes to form [[plexuses]]. Angioblasts are one of the two products formed from [[hemangioblasts]] (the other being [[pluripotential hemopoietic stem cell]]s). ==External links== * {{GrayPage|505}} * [http://www.medicine.uiowa.edu/creative/portfolio.asp?recordID=ILLUSTRATION&index=2 Diagram at uiowa.edu] * [http://www.brown.edu/Courses/BI0032/stemcell/vascu.htm "Development of the vascular system", at brown.edu] * [http://7e.devbio.com/article.php?ch=15&id=156 Alternative Sources Of Angioblasts] {{Gray's}} [[Category:Embryology]]