人中穴作为重要的抢救穴

已为临床实践所肯定

其作用效果也为许多实验研究所证实。我室以前的工作已经证实

刺激兔人中穴区对实验性呼吸暂停动物具有明显的始动效应

对正常动物亦有使呼吸加强的It had been reported that the stimulation of the "Renzhong" starts respiratory activity in rabbits whose respiration has been suspended. This action was caused by stimulating "Renzhong. Those signals transmit to the nucleus of trigeminal spinal

and go to influence the nucleus of respiration. Those signals include of pain and other sense. This study investigated whether this stimulation of "Renzhong" is caused by pain or another stimulus. Phrenic nerve discharges and respiratory rates of 7 anesthetized rabbits

each weighing 1.5 to 2.0 kg were recorded. Stimulation of the "Renzhong" by electrical impulses (10 ms pulse

20 Hz

0.4 - 4mA

duration 3-5 secends). Results. 1. Stimulating the "Renzhong"

resolted in an 83±16% increase in the amplitude of phrenic nerve discharges

and a 31±6% decrease in respiratory rate. 2. morphine was then injected into the rabbits (5mg/kg). After 8 minutes

the amplitude of phrenic nerve discharges had decreased by 22±9% and the respiratory rate had decreased by 16±6%. 3. At this acupoint

stimulation of the "Renzhong" resulted in a 43±8% increase of the amplitude of phrenic nerve discharges and a 20±6% decrease in respiratory rate. These results suggest that in the effect of the stimulation of "Renzhong" on the respiration pain sensation is one factor among the rest.