title: Order in the optic nerve of goldfish.
abstract: A small amount of horseradish peroxidase, injected into the goldfish optic nerve and transported into the retina, filled an annulus of ganglion cells. Since the retina grew by annular addition of cells, this result shows that axons from cells of similar age clustered together in the nerve.
mesh_terms: D000818:Animals; D001370:Axonal Transport; D001369:Axons / Q000648:ultrastructure; D003530:Cyprinidae / Q000033:anatomy & histology*; D005724:Ganglia / Q000166:cytology; D006054:Goldfish / Q000033:anatomy & histology*; D006735:Horseradish Peroxidase; D009434:Neural Pathways / Q000166:cytology; D009900:Optic Nerve / Q000166:cytology* / Q000254:growth & development; D012160:Retina / Q000166:cytology* / Q000254:growth & development
chemical_list: D006735:Horseradish Peroxidase