Email this article ULTRASTRUCTURE OF MOTOR NEURONS AND SYNAPSES IN THE OCULOMOTOR NERVE NUCLEI IN MICE
- Authors: Shtanchayev R.S.1, Mikheyeva I.B.1, Pen’kova N.A.1, Pavlik L.L.1
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Affiliations:
- RAS Institute of Theoretical and Experimental Biophysics
- Issue: Vol 147, No 2 (2015)
- Pages: 21-25
- Section: Articles
- URL: https://j-morphology.com/1026-3543/article/view/398851
- DOI: https://doi.org/10.17816/morph.398851
- ID: 398851
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Abstract
Motor neuron and synapse ultrastructure in the somatic area of oculomotor nerve nuclei (cranial nerve III nuclei) was studied in C57 Black/6 mice. It was shown that that axodendritic and axosomatic synapses were characterized by rounded subjunctional bodies, located at the postsynaptic side of the synaptic contact at some distance from postsynaptic density. At the site of the subjunctional densities, the synaptic gap was expanded to 30 μm. In the same synapse, the synaptic gap could be reduced twice or more. Axosomatic and axodendritic synapses occured on spines. On the soma and dendrites of motoneurons, en passant type of synapses were found. No gap junctions were observed.
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About the authors
R. Sh. Shtanchayev
RAS Institute of Theoretical and Experimental Biophysics
Email: rshtanch@mail.ru
Laboratory of Neuron Ultrastructure
I. B. Mikheyeva
RAS Institute of Theoretical and Experimental Biophysics
Email: mikhirina@mail.ru
Laboratory of Neuron Ultrastructure
N. A. Pen’kova
RAS Institute of Theoretical and Experimental Biophysics
Email: kokanchik@rambler.ru
Laboratory of Neuron Ultrastructure
L. L. Pavlik
RAS Institute of Theoretical and Experimental Biophysics
Email: pavlikl@mail.ru
Laboratory of Neuron Ultrastructure
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СМИ зарегистрировано Федеральной службой по надзору в сфере связи, информационных технологий и массовых коммуникаций (Роскомнадзор).