title: The origin and morphogenesis of pioneer neurons in the grasshopper metathoracic leg.
mesh_terms: D000375:Aging; D000818:Animals; D001369:Axons / Q000502:physiology; D004625:Embryo, Nonmammalian / Q000502:physiology; D005121:Extremities / Q000254:growth & development; D006110:Grasshoppers / Q000254:growth & development*; D008854:Microscopy, Electron; D009474:Neurons / Q000502:physiology* / Q000648:ultrastructure; D013909:Thorax / Q000254:growth & development