人的心跳次数和脉搏次数是一致的。当心室收缩时,血液通过瓣膜进入动脉,动脉管壁因而膨胀。当心室舒张时,瓣膜关闭,没有血到动脉,但动脉管壁有弹性,于是由膨胀而回缩。动脉壁的膨胀和回缩产生搏动,很快传到外周动脉,就是我们所叫的脉搏,所以,心脏跳动一次。心跳动强 The number of heartbeats and pulse frequency is the same. As the ventricle contracts, blood enters the artery through the valve and the wall of the artery expands. When the ventricle is dilated, the valve is closed, there is no blood to the artery, but the wall of the artery is elastic and is retracted by expansion. Inflation and retraction of the arterial wall produces a pulse that quickly spreads to the peripheral arteries, the pulse we call, so the heart beats once. Strong heartbeat