Question

Choose the correct sequence of events during a Cardiac cycle:

• A. SA node $\rightarrow$ Atrial depolarization $\rightarrow$ AV node $\rightarrow$ Ventricular repolarization $\rightarrow$ Ventricular depolarization
• B. SA node $\rightarrow$ AV node $\rightarrow$ Atrial depolarization $\rightarrow$ Ventricular repolarization $\rightarrow$ Ventricular depolarization
• C. SA node $\rightarrow$ AV node $\rightarrow$ Atrial depolarization $\rightarrow$ Ventricular depolarization $\rightarrow$ Ventricular repolarization
• D. SA node $\rightarrow$ Atrial depolarization $\rightarrow$ AV node $\rightarrow$ Ventricular depolarization $\rightarrow$ Ventricular repolarization

Hint:

Remember the EKG wave: P (Atrial Depol) $\rightarrow$ QRS (Ventricular Depol) $\rightarrow$ T (Ventricular Repol).

Answer 1

The Correct Option is D