, occurs when the —the aortic and pulmonary valves—close.
Under normal conditions, the "dub" may not be a single, pure sound. During inspiration (breathing in), increased venous return to the right heart delays the closure of the pulmonic valve. This causes the two components of S2 (aortic and pulmonic valves) to separate slightly, producing a physiological "splitting" of the dub—heard as "lub-du- dup " in young, healthy individuals. heartbeat lub dub
That steady rhythm. The one that sounds like home. ❤️ There is nothing quite like resting your head on someone’s chest and hearing that comforting lub-dub . It’s the soundtrack of safety, love, and being exactly where you’re meant to be. Turn up the volume on the love today. #heartbeat #couplegoals #love #lubdub #relationshipquotes , occurs when the —the aortic and pulmonary valves—close