The pacemaker for the heart is ordinarily the? subendocardial plexusundefinedatrioventricular bundle (of His);undefinedmembranous interventricular septumundefinedsinoatrial node
The pacemaker for the heart is ordinarily the? subendocardial plexusundefinedatrioventricular bundle (of His);undefinedmembranous interventricular septumundefinedsinoatrial node
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