Heart murmurs are sounds during your heartbeat cycle — such as In adults, abnormal murmurs are most often due to acquired heart valve.
Heart sounds are the noises generated by the beating heart and the resultant flow of blood In healthy adults, there are two normal heart sounds, often described as a lub and a dub (or dup), that occur in sequence with each heartbeat.
The auscultation of heart sounds including the S1 heart sound, S2 heart sound, If the LV is not overly compliant, as is in most adults, a S3 will not be loud.
The sounds waves responsible for heart sounds (including abnormal sounds such as This sound is normal in children, but when heard in adults it is often.
(See "Auscultation of cardiac murmurs in adults".) STETHOSCOPES. A variety of stethoscopes are available for auscultation of heart sounds.