Pages tagged: sinoatrial node (SA node)

A collaborative research team spearheaded by Dr. Jun Wang, Associate Professor in the Department of Pediatrics at McGovern Medical School...

Watch & Share on Texas Heart TV Any irregularity in your heart’s natural rhythm is called an arrhythmia. Almost everyone’s...

Electrical impulses from your heart muscle cause your heart to beat (contract). This electrical signal begins in the sinoatrial node,...