
好词典

源自希腊语 'sustolē'(收缩),由 'syn-'(共同)和 'stellein'(放置)组成,17世纪进入英语。
❶ 心脏收缩期,指心脏肌肉收缩将血液泵出的阶段,与舒张期共同构成完整心跳周期。
“During systole, the heart pumps oxygenated blood to the body.”
(在收缩期,心脏将含氧血液泵送至全身。)
“The doctor measured the blood pressure during systole and diastole.”
(医生测量了收缩期和舒张期的血压。)
ventricular systole — 心室收缩期,特指心室的收缩阶段,将血液泵入动脉。
“Ventricular systole begins with the closure of the mitral valve.”
(心室收缩期始于二尖瓣的关闭。)