title: Further observations on the enlargement of synaptic vesicles in degenerating optic nerve terminals of the avian tectum.
mesh_terms: D000818:Animals; D010856:Columbidae / Q000033:anatomy & histology*; D005613:Freeze Etching; D006652:Histological Techniques; D008854:Microscopy, Electron; D009410:Nerve Degeneration; D009899:Optic Lobe, Nonmammalian / Q000166:cytology*; D009900:Optic Nerve / Q000166:cytology*; D009992:Osmium; D013569:Synapses / Q000166:cytology*; D013572:Synaptic Vesicles; D015032:Zinc
chemical_list: D009992:Osmium; D015032:Zinc