Systolic murmur – occurs during a heart muscle contraction. Systolic murmurs are divided into ejection murmurs (due to blood flow through a narrowed vessel or irregular valve) and regurgitant murmurs. Diastolic murmur – occurs during heart muscle relaxation between beats.

Do heart murmurs have different sounds?

Sounds can range in volume from barely audible to easy to hear with a stethoscope. Abnormal heart sounds are called heart murmurs. These sounds can include rasping, whooshing, or blowing sounds. Heart murmurs can occur during different parts of your heartbeat.

How can you tell the difference between S1 and S2 heart sounds?

S1S2Just precedes carotid pulseFollows carotid pulseLouder at apexLouder at baseLower pitch and longer than S2Higher pitch and shorter than S2Because systole is shorter than diastole: