Schermuly L, Klinke R
Zentrum der Physiologie, Klinikum, J.W. Goethe-Universität, Frankfurt/Main, F.R.G.
Hear Res. 1990 Sep;48(1-2):69-77. doi: 10.1016/0378-5955(90)90199-y.
Infrasound sensitive afferent fibres recorded in the pigeon cochlear ganglion were marked by intracellular injections of horseradish peroxidase (HRP). All stained fibres were found to innervate hair cells in the basilar membrane between 90 and 950 microns from its apical end. No fibres to the macula lagenae were found. Nine of the 10 completely stained fibres contacted hair cells located abneurally on the free basilar membrane, the tenth ended over the neural limbus near its abneural border. All fibres innervated between two and nine hair cells. This is in contrast to common auditory fibres in the bird that were reported to innervate only one hair cell located neurally over the neural limbus. This paper, therefore, demonstrates, for the first time, physiologically defined fibres that do not end on 'inner' hair cells.
通过向鸽耳蜗神经节内进行辣根过氧化物酶(HRP)的细胞内注射,标记了对次声敏感的传入纤维。发现所有被染色的纤维都支配着基底膜上距其顶端90至950微米之间的毛细胞。未发现支配瓶状囊斑的纤维。10条完全被染色的纤维中有9条与位于游离基底膜神经外的毛细胞接触,第10条纤维在靠近其神经外边界的神经缘上终止。所有纤维支配2至9个毛细胞。这与报道的鸟类普通听觉纤维不同,后者仅支配位于神经缘神经侧的一个毛细胞。因此,本文首次证明了生理上确定的纤维并不终止于“内”毛细胞。