Question

At the end of joint diastole, which condition can be observed in heart?

• A. P wave will appear in the ECG
• B. Ventricles are about to show systole
• C. Ventricles are about three quarters full i.e., $70$ percent filling of the ventricles has taken place
• D. Both $\left(1\right)$ & $\left(3\right)$

Answer 1

The correct option is A P wave will appear in the ECG

During joint diastole blood is poured into left and right atria. Due to this filling of blood during joint diastole, atrioventricular valves (Bicuspid and Tricuspid valves) open and allows blood to flow from atria to ventricles. During joint diastole there is 70% filling of ventricles. the following is characterized by appearing of p wave in ECG.

Hence, the correct answer is (A)