The Korean Journal of Physiology
- Volume 30 Issue 1
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- Pages.105-116
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- 1996
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- 0300-4015(pISSN)
Effects of Systemic and Focal Hypoxia on the Activities of Rostral Ventrolateral Medullary Neurons in Cats
- Yan, Hai-Dun (Department of Physiology & Biophysics, Seoul National University College of Medicine) ;
- Kim, Charn (Department of Physiology & Biophysics, Seoul National University College of Medicine) ;
- Kim, Ji-Mok (Department of Physiology & Biophysics, Seoul National University College of Medicine) ;
- Lim, Won-Il (Department of Physiology & Biophysics, Seoul National University College of Medicine) ;
- Kim, Sang-Jeong (Department of Physiology & Biophysics, Seoul National University College of Medicine) ;
- Kim, Jun (Department of Physiology & Biophysics, Seoul National University College of Medicine)
- Published : 1996.06.30
Abstract
Rendering the brain ischemic would evoke the cerebral ischemic reflex which is characterized by an arterial pressor response, apnea and bradycardia. Since the rostral ventrolateral medulla (RVLM) is known to play a key role in the maintenance of normal cardiopulmonary activity, during the cerebral ischemic reflex some cardiac related cells should be excited and respiration related cells inhibited. In this context, the responses of RVLM neurons to systemie and focal hypoxia were analyzed in the present study. Twenty-five adult cats of either sex were anesthetized with
Keywords
- Rostral ventrolateral medulla (RVLM);
- Sodium cyanide;
- Nitrogen gas inhalation;
- Arterial blood pressure;
- Cardiac-related neuron;
- Respiration-related neuron;
- Vagotomy