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脑干神经元投射到脊髓的纤维,除传递运动信息外,并对感觉传入信息起反馈作用,产生下行抑制和提高痛阈与针刺镇痛有关。
Brainstem neurons projecting to the spinal cord fibers, in addition to transmission of movement information, and feedback on the feeling of feedback information, resulting in downward depression and improve pain threshold and acupuncture analgesia.