心电图记录和基本解释ECG Recording and Basic Interpretation（P...

ECG Recording and Basic Interpretation

心电图记录和基本解释

Electrical signalbegins in the sinoatrial (SA) node: 'naturalpacemaker.' causes the atria to contract. 

The signal thenpasses through the atrioventricular (AV) node sends the signal to theventricles via the “bundle of His” causes the ventricles to contract. 

孙秀成教授   北京大学医疗集团