| 单词 | sinoatrial node |
| 释义 | sinoatrial node【医】 窦房结, 基-弗二氏结 sinoatrial node sinoatrial node n.（名词）A small mass of specialized cardiac muscle fibers located in the posterior wall of the right atrium of the heart that acts as a pacemaker by generating at regular intervals the electric impulses of the heartbeat.Also called sinoauricular node ,sinus node 窦房结：位于右心房后壁的一小块特殊的心肌纤维，作为起搏器以正常的间隙引起心脏的电脉冲也作 sinoauricular node,sinus node |
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