S4.The fourth heart sound (S4, atrial gallop, presystolic gallop) is also the result of altered ventricular compliance.Its cadence has been likened to the soft a of appendix.
S4第四心音，又叫房性
律，收缩期
律，也是心室顺应性改变
结果。
词条纠错
X
心收缩
期
期声明：以上例句、词性
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entozoa, entozoan, entozoic, entozoologist, entozoology, entozoon, entr'acte, entrails, entrain, entrainer,
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presymptomatic, presynapsis, presynaptic, presynchronization, presystole, presystolic, pret, pretan, pret-a-porter, pretarsala,
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