title: A surprising muddle in the optic nerve.
mesh_terms: D000818:Animals; D001931:Brain Mapping; D002415:Cats; D009900:Optic Nerve / Q000166:cytology*; D012160:Retina / Q000166:cytology; D014793:Visual Cortex / Q000166:cytology; D014795:Visual Pathways / Q000166:cytology*