A note on the synapses between vesicle containing profiles in the pontine nuclei of the cat |
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Authors: | N V Narlieva D P Ivanov |
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Institution: | Department of Anatomy, Histology and Embryology, Medical Academy, Sofia, Bulgaria. |
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Abstract: | In the cat synapses between vesicle containing profiles were observed in ventral and dorsolateral pontine nuclei. The presynaptic elements consisted of two types of axon terminals: axon terminals characterized by a population of small (38-40 nm) round synaptic vesicles (SSV) and axon terminals containing pleomorphic synaptic vesicles (PSV). The postsynaptic pale elements (PP) had pleomorphic vesicles and some features attributed to dendrites. In the dorsolateral pontine nucleus most of PP profiles took part in serial synapses, usually as an intermediate component, they were rarely observed in triads. On the basis of their electron microscopical appearance and synaptic relations they might be considered to represent a dendritic part of putative interneurons. |
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