Lub Dub Sounds Systole Diastole Access

"The human heart doesn't sing. It knocks. Two knocks per beat. Lub... Dub.

In the language of the chest wall, there are only two syllables. lub dub sounds systole diastole

Tap the sound on to hear your own lub-dub. [Visual: Animation of a beating heart with valves opening/closing] "The human heart doesn't sing