Two types of renal mechanoreceptors.
Two types of renal mechanoreceptors.
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两种类型的肾机械感受器。
DOI：
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发表时间：
1971
期刊：
影响因子：
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通讯作者：
H. Ueda
中科院分区：
文献类型：
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作者：
Y. Uchida;K. Kamisaka;H. Ueda
在杂种犬肾神经中记录到两种传入冲动，一种是低电压、自发放电、慢适应单位(A型)，另一种是电压和阈值较高、非自发放电、快速适应单位(B型)。A型冲动包括肾内压力波每次上升时的不规则放电和规则放电。A型冲动随着肾内压力的增加或减少，使肾动脉或静脉压力改变为不同的方向。另一方面，B型冲动在压力下降或上升时出现一过性。B型放电是由肾内压力升高引起的，当肾内压力升高时，通过阻断肾动脉来降低肾内压力，同时升高静脉压力后，B型放电消失。综上所述，两种类型的肾脏机械感受器都是通过机械引起的肾内压改变而兴奋的。
Two types of the afferent impulses were recorded in the renal nerves of the mongrel dogs; the ones of low voltage, spontaneously discharging and of slowly adapting units (type A), and the others of higher voltage and threshold, not spontaneously discharging and of rapidly adapting units (type B). Type A impulses consisted of the ones of irregularly discharging and those of regularly discharging at each ascent of intrarenal pressure waves. Type A impulses increased or decreased concomitantly with intrarenal pressure on changing the pressure to different directions from either renal arterial or venous pressures. On the other hand, type B impulses appeared transiently at the fall or rise in the pressure. The discharges of type B, elicited by elevating intrarenal pressure perfusing Ringer's solution into the pelvis, to abnormally high levels, disappeared on reducing intrarenal pressure by occluding the renal artery whilst elevating venous pressure. In conclusions, the renal mechanoreceptors of both types were excited by mechanically induced alterations in intrarenal pressure.