Navigational substrates for peripheral pioneer growth cones: limb-axis polarity cues, limb-segment boundaries, and guidepost neurons.
D000818:Animals; D001369:Axons / Q000502:physiology / Q000648:ultrastructure; D004625:Embryo, Nonmammalian / Q000502:physiology; D004848:Epithelium / Q000502:physiology; D005121:Extremities / Q000294:innervation; D006110:Grasshoppers / Q000502:physiology*; D009024:Morphogenesis; D009420:Nervous System / Q000196:embryology / Q000254:growth & development*; D009474:Neurons / Q000502:physiology*; D009475:Neurons, Afferent / Q000502:physiology