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ISSN 2522-9028 (Print)
ISSN 2522-9036 (Online)
DOI: https://doi.org/10.15407/fz

Fiziologichnyi Zhurnal

is a scientific journal issued by the

Bogomoletz Institute of Physiology
National Academy of Sciences of Ukraine

Editor-in-chief: V.F. Sagach

The journal was founded in 1955 as
1955 – 1977 "Fiziolohichnyi zhurnal" (ISSN 0015 – 3311)
1978 – 1993 "Fiziologicheskii zhurnal" (ISSN 0201 – 8489)
1994 – 2016 "Fiziolohichnyi zhurnal" (ISSN 0201 – 8489)
2017 – "Fiziolohichnyi zhurnal" (ISSN 2522-9028)

Fiziol. Zh. 2007; 53(5): 14-21


Synaptic responses andintraganglionic connections of rat superior cervical ganglia neurones

H.E. Purnyn, O.V. Rikhalsky, S.A. Fedulova, M.S. Veselovsky

    O.O. Bogomoletz Institute of Physiology, National Academyof Sciences of Ukraine, Kyiv


Abstract

The rat superior cervical ganglion (SCG) neurones demonstrate responses on the threshold stimulation of the cervical sympathetic nerve, extrinsic (ECN) and intrinsic (ICN) carotid nerves. Both antidromic and synaptic responses were evoked by antidromic stimulation of ECN and ICN. The synaptic responses of each neuron differ by great variability amplitudes of the excitatory postsynaptic potentials and the currents, the rise time and the time constant decay of the postsynaptic current. We hypothesize that this variability of the synaptic responces is associated with the spatial distribution of synapses on the dendritic tree and on the neuron soma that are innervated by the single axon.

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