Jänig W, Szulczyk P
J Auton Nerv Syst. 1979 Dec;1(2):149-60. doi: 10.1016/0165-1838(79)90013-4.
Activity in the white rami T3 and L2 or 3 has been recorded and averaged with respect to excitation of the carotid sinus baroreceptor afferents produced by the pulsatile blood pressure (baroreceptor reflex) and with respect to brief trains of electrical stimuli exciting low threshold chemoreceptor afferents in the left carotid sinus nerve (chemoreceptor reflex). Experiments were performed on chloralose anaesthetized cats with both vago-depressor nerves cut. From the latency difference between the onset of the responses at the thoracic and their arrival at the lumbar level the spinal conduction velocity for the pathway of each reflex has been calculated. The baroreceptor reflex pathway has slower spinal conduction velocity 3.3 +/- 0.7 m/sec than the chemoreceptor pathway 5.5 +/- 0.9 m/sec. These results indicate that there are separate descending spinal pathways for the two types of reflexes.
已记录了T3和L2或L3白交通支的活动，并分别根据搏动性血压激发颈动脉窦压力感受器传入神经（压力感受器反射）以及短暂电刺激激发左颈动脉窦神经中低阈值化学感受器传入神经（化学感受器反射）的情况进行了平均处理。实验在氯醛糖麻醉且切断迷走减压神经的猫身上进行。根据胸部反应起始与腰部反应到达之间的潜伏期差异，计算了每种反射通路的脊髓传导速度。压力感受器反射通路的脊髓传导速度（3.3±0.7米/秒）比化学感受器反射通路（5.5±0.9米/秒）慢。这些结果表明，两种反射存在独立的脊髓下行通路。
