腧穴之結構與針刺得氣之關連性

Fine Structure of Acupuncture Point and It's Relationship to ＂Téh-Chi＂ Phenomenon

「得氣」為中醫傳統針灸之重要臨床表徵，系確保針刺療效之要件。生理學及臨床研究顯示，針刺時施針者之手下感以及受針者所感受之針感係來自針刺部位之肌收縮。本研究試圖對針刺「得氣」現象提供解剖學及實驗神經學的詮釋。應用氧化金染色法(Boyd)及Horseradish peroxidase(HRP)軸突逆輸法就參與針刺「得氣」之周圍及中樞神經系進行相關之研究。穴位部之肌知覺神經終未及運動神經終端處於緊鄰地位，其知覺及運動纖維形成共同神經幹，出入穴位部；且同一脊髓節所屬之脊髓神經節細胞與脊髓前角運動細胞，同時為HRP所標記，此等發現顯示針刺「得氣」係針刺激穴位部肌知覺感受器所引起之節段性反射。

In traditional Chinese medicine, ”Téh-Chi” has been used as an important clinical sign for determining the effectiveness of acupuncture. It is believed from the physiological and clinical studies that the subjective manual feeling of needle binding experienced by the acupuncturist and the needle sensation experienced by the patient are produced by the contraction of the muscle in the punctured region. The present study has attempted to provide an anatomical and neurological explanation to the ”Téh-Chi” phenomenon. Correlative studies in peripheral and central nervous systems involving the ”Téh-Chi” phenomenon have been conducted by using the methods of gold chloride staining and retrograde axonal transport of horseradish peroxidase. The intimate relationship between muscle receptors and effectors at the acupoint region and the simultaneous HRP labeling of dorsal root ganglion cells and spinal motor neurons in corresponding cord segments strongly suggests that the ”Téh-Chi” phenomenon induced by manipulation of the needle at the acupoint region is a segmental reflex.