Abstract
In the CNS, the S-, F-and C~type of synapses used to be classified with TEM based on the appearance of synaptic vesicles and the specialization of synaptic membranes (Charlton and Gray, 1966; Uchizono, 1975; Watanabe/ 1981): The S-type, or Gray’s type I, synapse has spherical synaptic vesicles and more or less electron-dense substances in the subsynaptic cytoplasm. The F-type, or Gray’s type II, has flattened vesicles and symmetrically thickened pre-and postsynaptic membranes. The C-type is remarkable because of the subsurface cistern in the subsynaptic cytoplasm.
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© 1991 Plenum Press, New York
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Watanabe, H., Washioka, H., Tonosaki, A. (1991). Intramembrane Particles in the Postsynaptic Membranes of the S-, F-, and C-Type Synapses by Freeze-Fracturing, and Deep-Etching Studies on the Xenopus Spinal Cord. In: Kito, S., Segawa, T., Olsen, R.W. (eds) Neuroreceptor Mechanisms in Brain. Advances in Experimental Medicine and Biology, vol 287. Springer, Boston, MA. https://doi.org/10.1007/978-1-4684-5907-4_29
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DOI: https://doi.org/10.1007/978-1-4684-5907-4_29
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