THE EFFECTS OF ELECTRICAL STIMULATION OF SPINAL CORD AND NUCLEUS TRACTUS SOLITARIUS ON UNIT ACTIVITY OF PARAVENTRICULAR NEUCLEUS IN THE RAT
- VernacularTitle:电刺激大鼠脊髓、孤束核对下丘脑室旁核单位放电的效应
- Author:
Chunan WANG
- Publication Type:Journal Article
- Keywords:
paraventricular nucleus unit discharge spinal cord nucleus tractus solitarius electrical stimulation
- From:
Academic Journal of Second Military Medical University
1985;0(06):-
- CountryChina
- Language:Chinese
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Abstract:
The effects of electrical stimulation of spinal cord and nucleus tractus solitarius (NTS) on unit activity of paraventricular neucleus (PVH) in the rats were studied. The results of experiments in 105 rats showed that in the 1365 units, 67 units made responses to electrical stimulation of spinal cord, and 42 units to electrical stimulation of nucleus tractus solitarius.In the 67 units responsive to electrical stimulation of spinal cord, five kinds of ffects were observed: facilitatory, excitatory, inhibitory, inhibitory-excitatory and excitatory-inhibitory. In the 42 units responsive to electrical stimulation of nucleus ractus solitarius some showed facilitatory effects and others inhibitory effects.The results indicate that the majority of spinal inputs is conveyed to the PVH along multisynaptic pathways,while a lesser part along oligo-or mono-synaptic pathways.The results also suggest that there are multisynaptic pathways from rostral part of nucleus tractus solitarius to the PVH.
