Stem cells which serve as the source of all the other specialized cells in the body, both when it forms during embryogenesis and when it replaces cells that have been lost to aging, injury or disease is explained in this science video. This is the first part of 4 videos. These videos are created by RIKEN CDB and they explain the different types of stem cell found in the embryonic body and the adult and illustrate the roles of these "master cells" in development and regeneration. Video REff: http://www.cdb.riken.go.jp This part of video gives general overview of steam cells and other, differentiated cells.
Duration: 1m 27s