Topics: Body Fluids Quiz
Pace maker is situated in heart .. ..
a) in the wall of right atrium
b) On interauricular septum
c) On interventricular septum
d) In the wall of left atrium
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Doctors use stethoscope to hear the sound; produced during each cardiac cycle. The second sound is heard when
a) AV node receives signal from SA node
b) AV valves open up
c) Ventricular walls vibrate due to gushing of blood from atria
d) Semilunar valves close down after the blood flows into vessels from ventricles