Adaptive and compensatory reaction of the brain to irradiation.
D000818:Animals; D000831:Animals, Newborn; D002454:Cell Differentiation / Q000528:radiation effects; D002467:Cell Nucleus / Q000528:radiation effects; D002540:Cerebral Cortex / Q000196:embryology / Q000528:radiation effects* / Q000648:ultrastructure; D002642:Chick Embryo; D004721:Endoplasmic Reticulum / Q000528:radiation effects; D008247:Lysosomes / Q000528:radiation effects; D008854:Microscopy, Electron; D008928:Mitochondria / Q000528:radiation effects; D009457:Neuroglia / Q000528:radiation effects; D009474:Neurons / Q000528:radiation effects; D051381:Rats; D014965:X-Rays