title: [Early development of the central nervous system. --II. Stage II of cytogenesis-- (author's transl)].
mesh_terms: D000818:Animals; D002454:Cell Differentiation; D002490:Central Nervous System / Q000196:embryology* / Q000648:ultrastructure; D002540:Cerebral Cortex / Q000196:embryology / Q000648:ultrastructure; D002642:Chick Embryo; D005260:Female; D006801:Humans; D009474:Neurons / Q000648:ultrastructure*; D011247:Pregnancy; D003336:Tectum Mesencephali / Q000196:embryology / Q000648:ultrastructure