title: The developmental history of the motor neuron.
mesh_terms: D000344:Afferent Pathways / Q000502:physiology; D000818:Animals; D001369:Axons / Q000502:physiology; D002465:Cell Movement; D002642:Chick Embryo; D004525:Efferent Pathways / Q000502:physiology; D009043:Motor Activity / Q000502:physiology; D009046:Motor Neurons / Q000502:physiology*; D009420:Nervous System / Q000196:embryology; D051381:Rats; D013116:Spinal Cord / Q000166:cytology / Q000196:embryology; D013569:Synapses / Q000502:physiology