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  • Title: [Ultrastructure of synapses of the parietal and visceral ganglia of Helix pomatia].
    Author: Uranova NA, Klintsova AIu.
    Journal: Arkh Anat Gistol Embriol; 1986 May; 90(5):32-8. PubMed ID: 3741161.
    Abstract:
    Types of synaptic contacts and peculiarities of their distribution in the neuropil of the parietal and visceral ganglia of the edible snail (Helix pomatia) CNS have been studied electron microscopically. Ultrastructure of dendrites and axons has been identified. Dendrites with spinous++ processes, polymorphism of synaptic contacts have been revealed. Besides axo-axonal synapses, axo-dendritic synapses are demonstrated on the trunks and on the spinous processes of the dendrites, as well as dendro-dendritic and serial synapses. Unevenness in distribution of synaptic contacts is shown in the neuropil. The areas of the greatest concentration of the synapses are the "synaptic fields". Peculiarities in distribution of the synaptic contacts are demonstrated in the parietal and visceral ganglia.
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