heart action

Heart sounds are present in every healthy person and occur during the heart action. During the physical examination with the stethoscope, the auscultation, possible damage to the heart valves and cardiac dysrhythmia can be detected. A total of two heart sounds are normally audible, in children and adolescents under certain circumstances up to four. The … Heart Sounds

1st heartbeat Mainly the first heart sound is produced by the closing of the sail valves (mitral and tricuspid valves). Furthermore, a tension of the heart muscles can be observed, with simultaneous closure of the valves. Thus, the heart wall starts to vibrate and the first heart sound becomes audible. This is why it is … 1st heartbeat | Heart Sounds