Would you like a similar review of S2, splitting patterns, or murmurs?
The S1 sound is often described as a "lub" and is the first of the two main heart sounds that can be heard with a stethoscope during auscultation. s1 heart sounds
As the ventricles begin to contract, the pressure within them rapidly rises. When this ventricular pressure exceeds the pressure in the atria, the AV valves slam shut to prevent the backflow of blood. This mechanical closure, combined with the subsequent tensing of the chordae tendineae and the vibrations of the ventricular walls, creates the audible "lub" heard during auscultation. Heart Sounds and Murmurs - UTMB Would you like a similar review of S2,
Abnormalities in S1 heart sounds can indicate underlying cardiac issues, making it an essential component of cardiac assessment. When this ventricular pressure exceeds the pressure in