Freeze-fracturing of presynaptic membranes in the central nervous system.
D000818:Animals; D002415:Cats; D002490:Central Nervous System; D002540:Cerebral Cortex / Q000166:cytology; D010856:Columbidae; D005613:Freeze Etching; D000882:Haplorhini; D051381:Rats; D013116:Spinal Cord / Q000166:cytology; D013572:Synaptic Vesicles / Q000166:cytology*