POST-SYNAPTIC ACTION OF EFFERENT FIBERS IN LATERAL LINE ORGAN OF BURBOT LOTA-LOTA
POST-SYNAPTIC ACTION OF EFFERENT FIBERS IN LATERAL LINE ORGAN OF BURBOT LOTA-LOTA
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DOI：
10.1113/jphysiol.1973.sp010406
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发表时间：
1973-01-01
影响因子：
5.5
通讯作者：
RUSSELL, IJ
中科院分区：
文献类型：
--
作者：
FLOCK, A;RUSSELL, IJ
1.用细胞外电极研究了传出纤维在沙鼠侧线器官上的突触后作用。2.选择性兴奋传出纤维或刺激侧线神经可引起上皮负传出电位、微音器电位增加和传入神经冲动抑制。3.刺激侧线神经除刺激传出纤维外，还引起传入纤维的逆行冲动。然而，当传出突触被加拉胺选择性阻断时，刺激侧线神经对侧线器官没有突触后的影响。4.机械刺激强度较大时，传出刺激对微音器电位的影响大于机械刺激幅度较低时。5.刺激外侧线器和耳蜗器的传出效应具有相似性，提示了类似的突触机制。
1. The post-synaptic action of efferent fibres on lateral line organs in the burbot was investigated with extracellular electrodes. 2. Selective excitation of efferent fibres or stimulation of the lateral line nerve causes a negative efferent potential in the epithelium, an increase in the microphonic potential, and inhibition of afferent nerve impulses. 3. Stimulation of the lateral line nerve causes antidromic impulses in the afferent fibres in addition to exciting the efferent fibres. However, stimulation of the lateral line nerve has no post-synaptic influence on lateral line organs when the efferent synapses are selectively blocked by gallamine. 4. The influence of efferent stimulation on the microphonic potential is greater at large amplitudes of mechanical stimulation than at low. 5. The similarities between the effects of efferent stimulation in the lateral line organ and in the cochlea suggest similar synaptic mechanisms.