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  • Title: [Electrotonic transmission between primary afferent fibers and the motor neurons of the isolated spinal cord of various representative amphibians].
    Author: Shiriaev BI.
    Journal: Zh Evol Biokhim Fiziol; 1983; 19(5):500-2. PubMed ID: 6316697.
    Abstract:
    Studies have been made of monosynaptic excitatory postsynaptic potentials elicited by stimulation of the posterior root in motoneurones of the isolated spinal cord of the frog Rana ridibunda, toad Bufo bufo, and clawed toad Xenopus laevis. In all the amphibians studied, the early component of monosynaptic EPSP was not blocked in Ca-free medium containing 2 mM Mn2+. It is suggested that electrical coupling in anuran amphibians reflects certain stage of evolution of the synaptic transmission in vertebrates.
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