How Heart Bypass Operations Work
Episodio 2 min 19s

How Heart Bypass Operations Work

Da BrainStuff iHeartPodcasts
Since the heart is a muscle, it relies on the oxygen and nutrients contained in blood. This blood is supplied by arteries on the exterior of the heart -- when these arteries are blocked, a heart attack results. Take a look at our HowStuffWorks article to

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