Lub: Dub

The Rhythm of Life: A Physiological and Cultural Analysis of the "Dub Lub" Cardiac Cycle

The "dub lub" is not always a clean, rhythmic duet. Variations in this sound are often the first indicator of pathology. dub lub

In a normal, healthy patient, the heartbeat follows a precise "lub-dub, lub-dub" sequence. How the Heart Works - How the Heart Beats | NHLBI, NIH The Rhythm of Life: A Physiological and Cultural