Ishizuka K, Koshimizu H, Suzuki K, Suzuki Y, Murakami T
Shigaku. 1989 Oct;77(3):904-9.
The responses of superior salivatory nucleus (SSN) neurons to electrical stimulation of ipsilateral orbital gyrus were investigated in ketamine anesthetized cats. A total of 52 SSN neurons were identified by the antidromic spike responses to stimulation of the right chorda tympani nerve. Thirty-three (63%) neurons responded with spikes to stimulation of the orbital gyrus. These neurons were also activated by stimulation of ipsilateral lingual nerve. Eleven (21%) neurons received the inputs from only the lingual nerve. Remaining 8 (16%) neurons failed to respond to stimulation of neither orbital gyrus nor lingual nerve. The latency of orbital cortically evoked responses was 16.5-42.0 msec (mean +/- S.D. = 28.6 +/- 6.9 msec, n = 33), and that to stimulation of lingual nerve was 6.5-15.5 msec (9.9 +/- 2.4 msec, n = 46), respectively. In this study, convergence of excitatory inputs from orbital gyrus and sensory nerve was found in 63% of SSN neurons. These inputs would play an important role in submandibular and sublingual salivation.
在氯胺酮麻醉的猫中，研究了上涎核（SSN）神经元对同侧眶回电刺激的反应。通过对右侧鼓索神经刺激的逆向动作电位反应，共鉴定出52个SSN神经元。33个（63%）神经元对眶回刺激有动作电位反应。这些神经元也被同侧舌神经刺激所激活。11个（21%）神经元仅接受来自舌神经的输入。其余8个（16%）神经元对眶回和舌神经刺激均无反应。眶回皮层诱发反应的潜伏期为16.5 - 42.0毫秒（平均值±标准差 = 28.6 ± 6.9毫秒，n = 33），对舌神经刺激的潜伏期分别为6.5 - 15.5毫秒（9.9 ± 2.4毫秒，n = 46）。在本研究中，63%的SSN神经元发现有来自眶回和感觉神经的兴奋性输入汇聚。这些输入在颌下腺和舌下腺唾液分泌中起重要作用。
