Heart sounds are associated with __ of the heart __ Heart sounds are known as __ 8 __ S1 sounds come from the __ valves while S2 sounds come from the __ valves.

Heart sounds are associated with the closing of the heart valves.<br /><br />Heart sounds are known as "lub" and "dub."<br /><br />S1 sounds come from the atrioventricular (AV) valves, while S2 sounds come from the semilunar valves.