The Korean Journal of Physiology
- 제27권2호
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- Pages.185-197
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- 1993
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- 0300-4015(pISSN)
Cardiovascular Neurons Mediating Somatosympathetic Reflex in Rostral Ventrolateral Medulla
- Goo, Yong-Sook (Department of Physiology, College of Medicine, Chungbuk National University) ;
- Kim, Sang-Jeong (Department of Physiology, College of Medicine, Seoul National University) ;
- Kim, Jun (Department of Physiology, College of Medicine, Seoul National University) ;
- Sung, Ho-Kyung (Department of Physiology, College of Medicine, Seoul National University)
- 발행 : 1993.12.01
초록
The rostral ventrolateral medulla (RVLM) includes vasopressor neurons, which transmit activation signals to the intermediolateral nucleus (IML) of the spinal cord, where the preganglionic sympathetic nucleus is located, to raise arterial blood pressure (BP). However, controversy exists as to the possible depressor area in the RVLM and the pathway involved. The present study persued evidence far the location of depressor neurons and the pathway by simultaneously observing changes in BP and the firing rate (FR) of cardiovascular neurons (CVNs) in the RVLM during the somatosympathetic reflex (SSR) elicited by peripheral nerve stimulation, since CVNs are known to contribute to the generation of the sympathetic nerve discharge. In 42 cats, anaesthetized with
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