Gustatory and thermal responses in the glossopharyngeal nerve of the rat.
Gustatory and thermal responses in the glossopharyngeal nerve of the rat.
复制标题
大鼠舌咽神经的味觉和热反应。
DOI：
--
复制
发表时间：
1966
期刊：
影响因子：
--
通讯作者：
Kazuhiro Yamada
中科院分区：
文献类型：
--
作者：
Kazuhiro Yamada
1.记录大鼠舌咽神经对味觉和热刺激舌后1/3的反应.神经对0.25-4 M NaCl、0.5 M KCl和0.02 M盐酸奎宁有反应，对0.5 M蔗糖和0.01 N HCl有极轻微的反应，但对水无反应。NaCl的响应幅度随浓度的对数线性增加至4 M. 4。对0.02 M奎宁的反应幅度相对于对0.5 M NaCl的反应幅度大于在鼓索中的反应幅度，并且对KCl的反应的相对幅度也大于在鼓索中的反应幅度。对各种味觉刺激的反应有几秒的潜伏期，0.5 M NaCl的潜伏期为2.5秒，并显示出特征性的渐进时间过程。该神经对舌头的冷却和加热都有很好的反应，有人认为该神经包含冷纤维和热纤维。
1. The glossopharyngeal nerve response in the rat to taste and thermal stimulation of the posterior third of the tongue was recorded.2. The nerve shows responses to 0.25-4 M NaCl, 0.5 M KCl and 0.02 M quinine hydrochloride, and very slight responses to 0.5 M sucrose and 0.01 NHCl but no response to water was obtained.3. The response magnitude for NaCl increases linearly with the logarithm of the concentration up to 4 M.4. The magnitude of response to 0.02 M quinine relative to that to 0.5 M NaCl is greater than that in the chorda tympani, and the relative magnitude of response for KCl is also greater than that in the chorda tympani.5. The response to various taste stimuli has a latency of a few sec, the latency for 0.5 M NaCl being 2.5 sec, and shows a characteristic gradual time course.6. The nerve responds well to both cooling and warming of the tongue, and it has been suggested that this nerve contains both cold and warm fibers.