<prompt> Astrocytes are seen to be developed from which layer?MesodermNeuroectodermEndodermNone  <response>: Ans. is b i.e., Neuroectoderm Glial cells ofCNS1 Macroglia derived from neuroectoderm :- Astrocytes, oligodendrocytes, ependymal cells, schwann cells.2 Microglia derivedfrom mesoderm. 