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中缝核群5-HT神经元的下行轴突终止于脊髓侧角,刺激中缝核群可抑制脊髓交感节前神经元,本实验室李思嘉等将5-HT脊髓蛛网膜下腔注射(ith)于家兔和大鼠,发现在血压下降的同时,心率没有明显的变化,为进一步分析5-HT在脊髓水平对血压影响的机制,本文将5-HT ith于完整及C_1横断脊髓大鼠,在观察血压((?)(?))、心率(HR)的同时,记录内脏交感神经放电(SND)。
The descending axons of the 5-HT neurons in the nucleus accumbens terminate in the lateral horn of the spinal cord, which stimulates the nucleus of the nucleus accumbens to inhibit the preganglionic neurons in the spinal cord. Li Sijia et al. Injected 5-HT spinal subarachnoid space Rabbits and rats found no significant changes in heart rate at the same time as blood pressure dropped. To further analyze the mechanism of 5-HT on blood pressure in the spinal cord, 5-HT ith in intact and C-1 transected spinal cord rats Observe the blood pressure ((?) (?)), Heart rate (HR), while recording visceral sympathetic nerve discharge (SND).