title: Light-and electron-microscopic investigation of the optic nerve fiber layer in the river lamprey (Lampetra fluviatilis).
mesh_terms: D000818:Animals; D005399:Fishes / Q000033:anatomy & histology*; D007798:Lampreys / Q000033:anatomy & histology*; D008854:Microscopy, Electron; D009412:Nerve Fibers / Q000648:ultrastructure; D009474:Neurons / Q000648:ultrastructure; D009900:Optic Nerve / Q000648:ultrastructure*; D012160:Retina / Q000648:ultrastructure