The first part of the heart’s conduction system is the:
sinoatrial node.
sinoatrial node.
atrioventricular node.
atrioventricular node.
myocardial node.
myocardial node.
septum node.
The correct answer is:
sinoatrial node.
sinoatrial node.
sinoatrial node.
atrioventricular node.
atrioventricular node.
myocardial node.
myocardial node.
septum node.
sinoatrial node.