The pacemaker for the heart is ordinarily the
The pacemaker for the heart is ordinarily the
A.sinoatrial node
B.atrioventricular node
C.atrioventricular bundle (of His)
D.subendocardial plexus
E.membranous interventricular septum
正确答案：sinoatrial node
Tag：系统解剖学全英文
时间：2021-12-25 14:38:10