Q. Find the matching pair : (Solved)
1. Lubb- sharp closure of AV valves at beginning of ventricular systole
2. Dub - sudden opening of semilunar valves at the beginning of ventricular systole
3. Pulsation of radial artery valves in blood vessels
4. Initiation of heart beat - Purkinje fibers
- c. Pulsation of radial artery valves in blood vessels