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Science 4 March 1966:
Vol. 151. no. 3714, pp. 1093 - 1094
DOI: 10.1126/science.151.3714.1093
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Articles

Electron Microscopy: Two Major Synaptic Types on Spinal Motoneurons

David Bodian 1

1 Department of Anatomny, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205

Two major types of synaptic bulbs are defined on the motoneuron surface of the monkey, on the basis of content of agranular "synaptic" vesicles of two distinct kinds. Both types are present on dendritic as well as perikaryal surface. Because of the approximately equal numbers, the hypothesis that one type is excitatory and the other inhibitory naturally arises.


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Synaptic Vesicles of Inhibitory and Excitatory Terminals in the Cerebellum.
L. M. H. Larramendi, L. Fickenscher, and N. Lemkey-Johnston (1967)
Science 156, 967-969
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Science. ISSN 0036-8075 (print), 1095-9203 (online)