How much time auricular systole, ventricular systole and joint diastole persist separately?
How much time auricular diastole persists?
How much time ventricular diastole persists?
Why S.A. node is called pacemaker of heart?
What is serum?
What is the role of valves?
The valves prevent the back flow of the blood.
Why are walls of auricles thinner than walls of ventricles?
Which is the largest artery?
Name the layers of the heart ?
What is pericardium?
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