【摘要】 本实验按照超神经节溃变的机理,利用Gomori酸性磷酸酶（AcP）改良法研究了大鼠坐骨神经、胫神经和腓总神经向脊髓胶状质投射的节段和区域定位。大鼠坐骨神经和胫神经向胶状质投射的节段为L₂～S₁;腓总神经的投射节段为L_2～6。坐骨神经在各节段胶状质的投射区,L_2～3为最内侧一部、中间一部和最外侧一部;在L₄～S₁为全部胶状质区。胫神经在各节段胶状质的投射区,L_2～5为最内侧一部和中间一部;在L₆～S₁为内侧一部。腓总神经在各节段的投射区,都在中间部。更多还原

【Abstract】 The segmental and regional projections of the sciatic, tibial and common peroneal nerves to the substantia gelatinosa of spinal cord in rats were studied with the acid phosphatase method. Experiments were carried on 42 rats. Under chloral hydrate anesthesia, sciatic, tibial and common peroneal nerves were severed respecively. Then, after a survival time of 5～12 days, the lumbosacral segments of the spinal cord were removed and sectioned. The frozen sections were incubated with the modified Gomori’s method.The projections of the sciatic and tibial nerves to the substantia gelatinosa （SG）were found in L₂～S₁, while these of the common peroneal nerve in L_2～6.The projections of the sciatic nerve were found in the most medial, the intermediate and the most lateral parts of SG in the segments L_2～3, and in entire SG in the segments L₄～S₁.The projections of the tibial nerve were shown in the most medial and the intermediate parts of SG in the segments L_2～5, and in the medial parts of SG at L₆～S₁.The projections of the common peroneal nerve were found in the intermediate parts of SG in all segments L_2～6.The above study has provided anatomical data for probing into the mechanism of somatosplanchnic interrelations and the principle governing acupuncture anesthesia.更多还原