Theophilidis G, Kiartzis K
Department of Zoology, School of Biology, Aristotle University, Thessaloniki, Macedonia, Greece.
Neurosci Lett. 1996 Sep 6;215(2):99-102.
The stretching of the isolated distal part of the sciatic nerve of the frog causes the excitation of a number of its nerve fibres. The excitation lasts as long as the force is applied, indicating a slow adapting mechanoreceptor system. The fact that in experiments in situ stretching of the sciatic nerve causes the reflex activation of the femoral muscles is a clear indication that the activated nerve fibres belong to primary afferent fibres. According to the results of this study either some of the primary afferent fibres in the sciatic nerve of the frog also have the potential of stimulus transduction (mechanical tension) or the sciatic nerve is equipped with nerve terminals which are sensitive to stimulus energy. The implication of this sensory mechanism in the proprioception of the leg is discussed further.
对青蛙坐骨神经孤立远端部分的拉伸会导致其一些神经纤维兴奋。只要施加力，兴奋就会持续，这表明存在一个慢适应机械感受器系统。在原位实验中，坐骨神经的拉伸会导致股肌的反射性激活，这一事实清楚地表明，被激活的神经纤维属于初级传入纤维。根据这项研究的结果，要么青蛙坐骨神经中的一些初级传入纤维也具有刺激转导（机械张力）的潜力，要么坐骨神经配备了对刺激能量敏感的神经末梢。进一步讨论了这种感觉机制在腿部本体感觉中的意义。
