Physiology Cardiovascular system b0fd01c6 Dicrotic notch is caused by A Closure of mitral valve B Opening of mitral valve C Closure of aoic valve D Opening of aoic valve High-Yield Explanation Closure of aoic and pulmonary valve causes a characteristic notch called dicrotic notch or incisura in pulse wave tracing Ref : Ganong 25th ed/page 540