A heart sound resulting from normal ventricular filling could be called a functional murmur.
How does heart produces sounds?
- A functional murmur is caused due to conditions outside the heart resulting in rapid blood flow through the heart
- Heart is a muscular organ which pumps blood into the blood vessels by repeated contractions.
- Human heart consists of 4 chambers- upper two atria and lower two ventricles.
- Heart murmurs are swishing sounds which can be heard with a stethoscope.
- Heart murmurs can be of different types on the basis of events occurring:
i) Diastolic murmur: When blood is filled into the heart
ii) Systolic murmur: When blood comes out from heart
iii) Continuous murmur: Occurs regularly during the heartbeat
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