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大鼠延髓尾端加压区对外周血管紧张的影响

王晶, 林默君, 贾秉均

福建医科大学生理学教研室.福建,福州 350004

摘要

以血管的灌流压变化反映血管紧张性,观察L-谷氨酸(L-glu)及肾上腺素能受体阻断剂微量注射于大鼠延髓腹面心血管活动调控区对骨骼肌血管和肾血管紧张的影响。结果提示CPA对外周血管紧张性的影响主要是通过VSMp的加压神经元实现的,很可能为#alpha#-或#beta#-肾上腺素能受体所介导。

关键词： 延髓尾端加压区; 血管阻抗; 普萘洛尔; 酚妥拉明

Role of caudal pressor area of medulla oblongata in vasomotor tone of peripheral vessels

Wang Jing, Lin Mojun, Jia Bingjun

Department of Physiology,Fujian Medical University.Fuzhou 350004,Fujian

Abstract

To study the role of the caudal pressor area (CPA) on the ventral surface of medulla oblongata in vasotonia of the skeletal muscles and kidneys, perfusion pressures of vessels in skeletal muscles and kidneys were recorded to observe effects of microinjection of L-glutamate (L-glu) into CPA. These results indicate that the vascular roles of CPA were mainly mediated via #alpha#- and/or #beta#-receptors.

Key words: Caudal pressor area;Vasomotor tone;Phentolamine;Propranolol

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引用本文：

王晶, 林默君, 贾秉均. 大鼠延髓尾端加压区对外周血管紧张的影响[J]. 生理学报 1999; 51 (4): .

Wang Jing, Lin Mojun, Jia Bingjun. Role of caudal pressor area of medulla oblongata in vasomotor tone of peripheral vessels. Acta Physiol Sin 1999; 51 (4): (in Chinese with English abstract).