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ZoologyNEET 2024Human heart, cardiac cycle and ECG

Body Fluids and Circulation

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:

  1. A.A-III, B-II, C-IV, D-I✓
  2. B.A-II, B-III, C-I, D-IV
  3. C.A-IV, B-II, C-I, D-III
  4. D.A-I, B-III, C-IV, D-II

Solution

The P wave is atrial depolarisation (III); the QRS complex, ventricular depolarisation (II); the T wave, ventricular repolarisation (IV); in the T–P gap the heart is electrically silent (I).

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