title: Neurons with presynaptic somatic protrusions in the visual cortex of monkeys.
abstract: In layer IV of the visual cortex of two primate species three small neurons were found that gave rise to short presynaptic somatic protrusions. The protrusions contained a cluster of predominantly round vesicles and established asymmetrical synaptic contacts with the characteristics of Gray's type 1 terminals.
mesh_terms: D000818:Animals; D000882:Haplorhini; D008252:Macaca fascicularis; D008854:Microscopy, Electron; D009474:Neurons / Q000166:cytology; D012453:Saimiri; D013569:Synapses / Q000648:ultrastructure; D014793:Visual Cortex / Q000166:cytology* / Q000648:ultrastructure