Burachevskaia L E
Fiziol Zh SSSR Im I M Sechenova. 1983 Feb;69(2):252-7.
In experiments on anesthetized cats, the reactions elicited by CO2 inhalation were studied in single motor units of the intercostal muscles activated during shivering. The excitation of the bulbar respiratory center during shivering was found to modify the activity of the respiratory and tonic motor units. Most of the respiratory motor units in a hypercapnic state increased the mean firing rate by 1.5/sec. The tonic motor units both diminished the mean firing rate and changed the pattern of activity: they began to produce bursts of spikes synchronous with the respiratory rhythm. The problems of supraspinal regulation of activity of the intercostal muscles motoneuron pool are discussed.
在对麻醉猫进行的实验中，研究了在寒颤期间被激活的肋间肌单个运动单位对吸入二氧化碳的反应。发现在寒颤期间延髓呼吸中枢的兴奋会改变呼吸运动单位和紧张性运动单位的活动。大多数处于高碳酸血症状态的呼吸运动单位平均放电频率增加了1.5次/秒。紧张性运动单位既降低了平均放电频率，又改变了活动模式：它们开始产生与呼吸节律同步的脉冲串。讨论了肋间肌运动神经元池活动的脊髓上调节问题。
