摘要
目的观察切断迷走神经前后二氧化碳对家兔呼吸的影响。方法将12只家兔分为2组,每组6只家兔,分别在切断迷走神经前后给予二氧化碳,观察二氧化碳对呼吸的影响。结果观察切断迷走神经前或切断迷走神经后呼吸变化,差异无显著性(P>0.05)。结论切断外周化学感受器的传入神经,二氧化碳对呼吸运动的调节作用依然保持不变。本实验利用做过呼吸运动实验的家兔来证实二氧化碳主要通过中枢化学感受器途径对呼吸产生影响。
Objective To observe impact of carbon dioxide on rabbits breathing before and after vagotomy . Methods 12 rabbits were divided into two groups. They were respectively given carbon dioxide, before and after vagotomy . the effects of carbon dioxide on respiration was observed. Results There was no significant difference （P〉 0.05）before and after vagotomy, There was no changes in breathing. Conclusion The cutting off of the peripheral chemoreceptor afferent nerve has no effect on carbon dioxide regulation of respiration . Experimental use of the experiments done in rabbits breathing exercise to prove that carbon dioxide, primarily by means of central chemoreceptor influence on respiration.
出处
《基层医学论坛》
2010年第1期1-2,共2页
The Medical Forum
基金
泸州医学院院级教改课题(20071120)
