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. Author manuscript; available in PMC: 2014 Jul 21.
Published in final edited form as: J Cardiovasc Nurs. 2009 Mar-Apr;24(2):98–105. doi: 10.1097/JCN.0b013e318197a6a5

Figure 1. Derivation of Stem Cells.

Figure 1

During natural embryo development, cells undergo proliferation and specialization from the fertilized egg, to the blastocyst, to the gastrula during natural embryo development (left side of panel). Pluripotent, embryonic stem cells are derived from the inner cell mass of the blastoctyst (lightly shaded). Multipotent stem cells (diamond pattern, diagonal lines, and darker shade) are found in the developing gastrula or derived from pluripotent stem cells and are restricted to give rise to only cells of their respective germ layer.