Question :Doctors use stethoscope to hear the sound, produced during each cardiac cycle. The second sound is heard when:

Question :Doctors use stethoscope to hear the sound, produced during e

1.	Question :Doctors use stethoscope to hear the sound, produced during each cardiac cycle. The second sound is heard when:
Answer» AV node receives SIGNAL from SA node AV valves VENTRICULAR WALL vibrate DUE to gushing of blood from atria Ventricular wall vibrate due to gushing of blood from atria Solution :Ventricular wall vibrate due to gushing of blood from atria