The lub-dub sound is a familiar and reassuring sound that is synonymous with life. It is the sound of the heartbeat, a vital sign that indicates the health and functioning of the cardiovascular system. But have you ever wondered what causes this sound? In this feature, we'll explore the anatomy and physiology behind the lub-dub sound, and what it can tell us about our overall health.
Ruby realized then that the "lub-dub" was not a noise of struggle. It was the sound of . It was the sound of doors opening and closing in perfect trust, keeping the story of life moving, second by second, from the first beat to the last.
When clinicians listen to the heart, they are listening for deviations in the "lub-dub" that suggest structural failure.
Mechanism: Atrioventricular Valve Closure