Fundamentholfundamenthol
NEET2023Biology
Q.

Match List I with List II:

List IList II
A. P-waveI. Beginning of systole
B. Q-waveII. Repolarisation of ventricles
C. QRS complexIII. Depolarisation of atria
D. T-waveIV. Depolarisation of ventricles

Choose the correct answer from the options given below:

  1. A

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

  2. B

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

  3. C

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

  4. D

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

Solution

P-wave is the electrical depolarisation of the atria (A–III). The Q-wave marks the very beginning of ventricular systole (B–I). The QRS complex represents ventricular depolarisation, initiating ventricular contraction (C–IV). The T-wave represents ventricular repolarisation (D–II).

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