Systole. The chamber contracts. Pressure peaks. Blood explodes into the aorta. The mitral valve whispers goodbye as it snaps shut. This is the sound of doing .
Diastole. The chamber expands. Pressure drops. Blood trickles in from the lungs. The aortic valve catches the wave, slamming the gate. This is the sound of receiving . lub dub sounds systole diastole
Let’s break it down:
Tap the sound on to hear your own lub-dub. [Visual: Animation of a beating heart with valves opening/closing] Systole