Which atrioventricular valve closes first?
The mitral, followed by the tricuspid (high pressure beds always close earlier). Since mitral closure is much
louder than tricuspid, the first component of S1 is usually referred to as M1 and predominates in the
formation of the sound.
The mitral, followed by the tricuspid (high pressure beds always close earlier). Since mitral closure is much
louder than tricuspid, the first component of S1 is usually referred to as M1 and predominates in the
formation of the sound.