豚鼠输尿管的传入神经支配
Afferent innervation of the guinea-pig's ureter.
作者信息
Sann H, Cervero F
机构信息
Department of Physiology, University of Bristol, Medical School, UK.
出版信息
Agents Actions. 1988 Dec;25(3-4):243-5. doi: 10.1007/BF01965024.
The electrical activity of 41 mechanosensitive afferent units was recored using an in vitro preparation of the guinea-pig's ureter. The conduction velocities of these fibres were found to be in the C-fibre range. Only 4 of them responded to contractions of the ureter. The activation threshold of the units to intraluminal (i.l.) pressure varied between 3 and 50 mm Hg. It is concluded that some of these afferent fibres might be involved in the signalling of nociceptive events.
利用豚鼠输尿管的体外制备物记录了41个机械敏感传入单位的电活动。发现这些纤维的传导速度在C纤维范围内。其中只有4个对输尿管收缩有反应。这些单位对腔内（i.l.）压力的激活阈值在3至50毫米汞柱之间变化。得出的结论是，其中一些传入纤维可能参与伤害性事件的信号传递。
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