Question

Match List I with List II:

List I		List II
A	P wave	I	Heart muscles are electrically silent.
B	QRS complex	II	Depolarisation of ventricles.
C	T wave	III	Depolarisation of atria.
D	T-P gap	IV	Repolarisation of ventricles.

Choose the correct answer from the options given below:

• A. A-I, B-III, C-IV, D-II
• B. A-III, B-II, C-IV, D-I
• C. A-II, B-III, C-I, D-IV
• D. A-IV, B-II, C-I, D-III

Answer 1

The Correct Option is B

To address the matching of List I with List II, it is necessary to comprehend the terminology related to an Electrocardiogram (ECG).

• The P wave signifies the atrial depolarization, corresponding to option III.
• The QRS complex represents the ventricular depolarization, aligning with option II.
• The T wave is linked to the ventricular repolarization, matching option IV.
• The T-P gap denotes a phase of electrical quiescence in the heart muscle, which corresponds to option I.

Consequently, the accurate pairings are as follows:

List I	List II
A - P wave	III - Atrial depolarization
B - QRS complex	II - Ventricular depolarization
C - T wave	IV - Ventricular repolarization
D - T-P gap	I - Heart muscles are electrically silent

Therefore, the correct correspondence is: A-III, B-II, C-IV, D-I.