ABSTRACT
Objective To investigate the changes in blood pressure and serum norepinephrine after stretching the superior cervical sympathetic ganglia.Methods The superior cervical sympathetic ganglia of 10 rabbits were stretched to simulate the physical stimulation of cervicogenic hypertension.The blood pressure and content of norepinephrine in serum were observed and the observations were correlated.Results The rabbits' blood pressure had risen significantly after the stretching.The content of norepinephrine in serum had also increased significantly.The changes in blood pressure and norepinephrine content showed significant correlation.Conclusion The changes in blood pressure and serum norepinephrine after stretching of the superior cervical sympathetic ganglia show significant correlation,at least in rabbits.