What is Heart Sound? Types, Nature, Time, Location Of Heart Sound.
Heart Sound - The Sound Produce from Closure Of Valve During Cardiac Activity Known as Heart Sound. - The Sound is Produced due to backforce Produced by blood During Closure Of Valve. Two Types Of Heart Sound: 1. Audible Heart Sound : Easily Heard by Stethoscope. 2 Types :- A. First HS :- Produced During Ventricle Systole When Both Atrio-ventricular Valve Close. • Nature Of Sound:- Lubb • Time:- 0.10 to 0.17 second • Frequency: 25 to 45 Hz • Location:- On Chest Wall ( between 5th to 6th intercoastal Of Right and Left Around Sternum). B. Second HS :- Produced During Ventricle Systole When Both Semilunar ...