There are many other heart sounds which are abnormal and can be heard or seen.
Extra heart sounds can be a sign of heart failure.
The second heart sound is also two components, A2 and P2.
The lung sounds have a higher frequency than heart sounds.
The human heart not only makes heart sounds, but it also is a set of resonant chambers.
During the physical exam, your doctor will listen for an extra heart sound (a murmur).
As a result, one may hear a fourth heart sound due to the stiff ventricle.
It might be a coronary attack, but I happen to know his blood pressure was normal, and his heart sound.
The sound seems very close to the ear and may seem louder than or may even mask the other heart sounds.
After some time the abdomen becomes silent, heart sounds can be heard all over.