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

List-I (ECG)
(A) P-wave
(B) QRS complex
(C) T wa

Question

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

Accepted Answer

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).

Step-by-Step Solution

Practice All BIOLOGY Questions