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Science 1 April 1966:
Vol. 152. no. 3718, pp. 76 - 78
DOI: 10.1126/science.152.3718.76
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Articles

Electron Microscopy: Tight Junctions in Synapses of the Chick Ciliary Ganglion

A. J. Darin de Lorenzo 1

1 Johns Hopkins University, School of Medicine, Johns Hopkins Hospital, Baltimore, Maryland 21205

Examination of the synaptic membranes in calyciform endings of the chick ciliary ganglion has shown tight junctions selectively located on axon hillocks of postsynaptic neurons. Observations of similar membrane fusion in other junctions that involve electrotonic transmission suggest the possibility of identifying electrotonic junctions by electron microscopy.


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