Projections of the mesenteric and pelvic nerves in the nuclei of Goll and Burdach were studied by the evoked potentials method in cats anesthetized with chloralose and immobilized with listhenon. Stimulation of visceral nerves is accompanied by the development of biphasic potentials with an initial positive wave. Potentials were recorded in all parts of the nuclei studied. The latent periods of responses to stimulation of the mesenteric nerves varied from 13 to 22 msec, and to stimulation of the pelvic nerves from 8 to 21 msec. Potentials appeared later in the nucleus of Burdach in response to stimulation of the same nerves. The amplitudes of the responses depended on the location of the recording electrode. The features of organization of projections of these visceral nerves suggest the existence of special nuclear formations for projections of visceral nerves in the medulla similar to the para-alar nucleus for the pelvic nerves.
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Musyashchikova, S.S., Sinyaya, M.S. Activation of the nuclei of Goll and Burdach in the medulla oblongata by visceral afferent systems. Neurophysiology 6, 127–132 (1974). https://doi.org/10.1007/BF01062748
- Latent Period
- Medulla Oblongata
- Potential Method
- Recording Electrode
- Pelvic Nerve