Cardiac physiology ventricles, pushing open the tricuspid and mitral valves. As pressure drops within the ventricles, blood flows from the major veins into the relaxed atria and from there into the ventricles. Both chambers are in diastole, the atrioventricular valves are open, and the semilunar valves remain closed. The cardiac cycle is complete. 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
How Many Birds gets faster. The singer states that he's lonely without his girl and doesn't know what to do. The Kids covered the song the same year, lead vocalist Michael Griffith and Tony Borg singing to the Bee Gees backing tracks. The Kids never recorded again but the fact that they chose this song to record proves that the Saint Clair tapes were not discarded when the studio closed, and were presumably in Nat Kipner's hands. But Kipner today has no idea where they went to. How Many Birds "How Many Birds" is a song written by Barry Gibb, recorded by the