| 单词 | sinoatrial node |
| 释义 | sinoatrial node (extremely rare) n WORD FAMILY sinoatrial node USAGE EXAMPLESIvabradine slows the rate of the heart by inhibiting the so-called “funny” current within the heart’s natural pacemaker, the sinoatrial node. Forbes(Apr 15, 2015) TBX18 is normally active in embryos, where it triggers, among other things, the formation of the heart’s rhythm keeping centre, the sinoatrial node. Forbes(Jul 17, 2014) In healthy people, a small region of the heart, called the sinoatrial node, fires the electrical impulses that determine heart rate. Scientific American(Jul 17, 2014) n a specialized bit of heart tissue that controls the heartbeat Syn|Hyper SA node, cardiac pacemaker, pacemaker cardiac muscle, heart muscle the muscle tissue of the heart; adapted to continued rhythmic contraction |
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