鼠尾吊后中枢和外周正肾上腺素的转运速度微重力可引起心血管功能失调，为探讨其机理，进行了大量的研究工作。实验证明，压力感受器反射活动的改变、血浆容量减少、肌萎缩、静脉顺应性增高等都是造成立位耐力下降的原因。但至今对微重力下交感神经活动所发生的改变还是不... After tail-suspension, the transport velocity of central and peripheral epinephrine microgravity can cause cardiovascular dysfunction. To explore its mechanism, a great deal of research work has been done. Experiments show that changes in baroreceptor reflex activity, decreased plasma volume, muscle atrophy, increased venous compliance and so are the causes of decreased standing stamina. But so far the changes in sympathetic activity under microgravity are still not ...