- Angioblast
Blood vessels first make their appearance in several scattered vascular areas that are developed simultaneously between theentoderm and themesoderm of theyolk-sac , i. e., outside the body of theembryo . 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 formplexuses .Angioblasts are one of the two products formed from
hemangioblasts (the other beingpluripotential hemopoietic stem cell s).External links
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* [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]
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