| Abstract: | The interneuronal connections in ganglia of the caudal part of the hen intestinal nerve of Remak are presented as axodendritic and axosomatic synapses and symmetric axo-axonal, dendro-dendritic and axodendritic contacts, often forming complicated complexes. Under conditions of preliminary decentralization or under certain disturbances of nervous connections with the intestine, a part of synapses remains, and a part of them degenerates, this demonstrates participation of peripheral afferent neurons in formation of the synaptic apparatus of the ganglia mentioned. The axonal terminals differentiate by composition of the synaptic vesicles: some contain mainly light agranular vesicles, others--a large amount of granular ones. The characteristic peculiarities of the hen intestinal nerve ganglia, in contrast to analogous mammalian ganglia, are abundant axosomatic synapses in some neurons, and presynaptic terminals, containing a large number of granular vesicles. |
