The effect of high frequency sound waves on heart muscle and other irritable tissues
The effect of high frequency sound waves on heart muscle and other irritable tissues
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DOI：
10.1152/ajplegacy.1929.91.1.284
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发表时间：
1929-12-01
影响因子：
--
通讯作者：
Harvey, EN
中科院分区：
文献类型：
--
作者：
Harvey, EN
高频(340千周)高强度声波可引起浸泡在S液中的蛙或龟静止的室肌的节律性收缩和较快的心房自然节律，并伴有收缩幅度的减小和频率的增加。接触携带强超声波的脑室、骨骼肌或神经与玻璃接触不会产生刺激。消化道的平滑肌在超声刺激下表现出一些收缩，但与心肌相比，这种作用可以忽略不计。弯曲的腓肠肌不受刺激。这种作用可能是由于随着声波的增加而引起的压力变化，因为众所周知，增加的压力会刺激。
High frequency (340 kilocycles) sound waves of high intensity will cause rhythmic contraction of quiescent ventricular muscle of frog or turtle immersed in Ringer''s solution and a more rapid natural rhythm of the auricles accompanied by lessened amplitude of contraction and often by increased tone. Touching ventricle or skeletal muscle or nerve to glass carrying intense supersound waves does not stimulate. Smooth muscle of the alimentary tract exhibits some contraction from supersonic stimulation but the effect is negligible compared with that of heart muscle. Curarized gastrocnemius is not stimulated. The effect may be due to increased pressure changes accompanying the sound waves since it is known that increased pressure will stimulate.