Dub Sounds Systole Diastole: Lub

So, remember: (Lub) is the contraction. Diastole (Dub) is the relaxation. One pumps, one primes. Together, they keep you alive." Option 3: Poetic / Medical Aesthetic (For a Poster or Blog) Title: The Bilingual Heart

"The human heart doesn't sing. It knocks. Two knocks per beat. Lub... Dub. lub dub sounds systole diastole

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 . So, remember: (Lub) is the contraction

Tap the sound on to hear your own lub-dub. [Visual: Animation of a beating heart with valves opening/closing] Together, they keep you alive

The marks Systole . This is the heart's power move. The bottom chambers—the ventricles—squeeze tight. The valves between the upper and lower chambers (the AV valves) slam shut. That slamming door? That’s your 'Lub.'