Question

Find out the wrong statement:

• A. SA node is called the pacemaker of the heart
• B. Tricuspid valve is located between right atrium and right ventricle
• C. By counting the number of QRS complexes that occur in a given time period, one can determine the heart beat rate of an individual
• D. The P wave represents the depolarization of the atria while QRS complex represents the repolarization of the ventricles

Answer 1

The correct option is D

The P wave represents the depolarization of the atria while QRS complex represents the repolarization of the ventricles

The P wave represents atrial depolarisation and the QRS complex represents the depolarisation of the ventricles. In a normal EKG, the P wave precedes the QRS complex.