Vasodilator fibres to the tongue in the chorda tympani proper nerve.
Vasodilator fibres to the tongue in the chorda tympani proper nerve.
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血管扩张纤维到达舌头的鼓索固有神经。
DOI：
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发表时间：
1977
期刊：
影响因子：
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通讯作者：
Goran Hellekant
中科院分区：
文献类型：
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作者：
Goran Hellekant
电刺激鼓室索固有神经（CT）引起恒流灌注舌的血管扩张。有人提出，作为对此的一种解释，血管舒张是CT感觉纤维反序脉冲的结果。然而，在大鼠CT的传出纤维变性后，发现电刺激CT没有引起血管扩张。由于根据所有可用的标准，感觉纤维仍然存在，因此结果表明，在神经供应完整的舌头上观察到的血管舒张不可能是反节律脉冲的原因。此外，由于舌头受CT支配的部分没有腺体，大唾液腺的循环与大鼠的舌头是分开的，因此可以得出结论，血管扩张不是腺体活动的二次效应，而是由CT中的血管扩张纤维引起的。
Electrical stimulation of the chorda tympani proper nerve (CT) causes vasodilatation in the constant-flow perfused tongue. It has been suggested, as an explanation for this, that the vasodilatation is the result of antidromic impulses in sensory fibres of the CT. However, after degeneration of the efferent fibres in CT in the rat it was found that electrical stimulation of the CT caused no vasodilatation. Since, by all criteria available, the sensory fibres remained, the result indicates that antidromic impulses could not be the cause of the vasodiltation observed in tongues with intact nerve supply. Further, since there are no glands in the part of the tongue innervated by the CT and the circulation of the large salivary glands is separate from the tongue in the rat, it is concluded that the vasodilatation was not a secondary effect of glandular activity, but was caused by vasodilator fibres in the CT.