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NEET BIOLOGYMedium

Match List - I with List - II and select the correct option:

List-I (ECG) (A) P-wave (B) QRS complex (C) T wave (D) End of T wave

List-II (Electrical activity of heart) (I) Depolarisation of ventricles (II) End of systole (III) Depolarisation of atria (IV) Repolarisation of ventricles

A

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

B

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

C

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

D

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

Step-by-Step Solution

According to the text regarding the standard ECG:

  • The P-wave represents the electrical excitation or depolarisation of the atria (A-III).
  • The QRS complex represents the depolarisation of the ventricles (B-I).
  • The T-wave represents the return of the ventricles from excited to normal state, i.e., repolarisation of ventricles (C-IV).
  • The end of the T-wave marks the end of systole (D-II).
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Solved: BIOLOGY Question for NEET | Sushrut