on auscultation the heart sound s1 indicates the closure of the ventricles.
on auscultation the heart sound s1 indicates the closure of the?
ventricles
one of the simplest methods of assessing the heart's condition is to listen to it using a stethoscope. in a healthy heart, there are only two audible heart sounds, called s1 and s2. the first heart sound s1, is the sound created by the closing of the atrioventricular valves during ventricular contraction and is normally described as "lub". the second heart sound, s2, is the sound of the semilunar valves closing during ventricular diastole and is described as "dub". each sound consists of two components, reflecting the slight difference in time as the two valves close. s2 may split into two distinct sounds, either as a result of inspiration or different valvular or cardiac problems. additional heart sounds may also be present and these give rise to gallop rhythms. a third heart sound, s3 usually indicates an increase in ventricular blood volume. a fourth heart sound s4 is referred to as an atrial gallop and is produced by the sound of blood being forced into a stiff ventricle. the combined presence of s3 and s4 give a quadruple gallop.
cardiac physiology
bullet::::- the upplands regemente (signal), a 1902 signal regiment of the swedish armed forces





























bullet::::- a planned bremen s-bahn line





























bullet::::- a hamburg s-bahn line





























bullet::::- a hanover s-bahn line





























bullet::::- a nuremberg s-bahn line





























bullet::::- a rheinneckar s-bahn line





























bullet::::- a rhein-ruhr s-bahn line





























bullet::::- a rhine-main s-bahn line





























bullet::::- a rostock s-bahn line





























bullet::::- a stuttgart s-bahn line





























bullet::::- a stadtbahn karlsruhe line





























bullet::::- a star catalogue





























section::::with superscripts and subscripts.





























s may refer to :





























bullet::::- s1 (heart sound), a heart sound in cardiac auscultation





























s may refer to :
s1