The given figure represents diagrammatic presentation of an ECG. Each peak in the ECG is identified with a letter from P to T that corresponds to a specific electrical activity of the heart. Which of the following letter shows the incorrect activity of heart?

Question

The given figure represents diagrammatic presentation of an ECG. Each peak in the ECG is identified with a letter from P to T that corresponds to a specific electrical activity of the heart. <img class="img-fluid question-image" alt="image" src="https://cdn.tardigrade.in/img/question/biology/ce5f72b4149b53ffb836ba7932bea86f-.png" /> Which of the following letter shows the incorrect activity of heart? (A) QRS - Depolarization of the ventricles (B) R wave - Marks the beginning of the systole. (C) P- Electrical excitation (or depolarization) of the atria (D) T wave - Return of the ventricles from excited to normal state (repolarization).

Tardigrade Admin · Accepted Answer

The contraction starts shortly after the Q wave and marks the beginning of the systole.

Q. The given figure represents diagrammatic presentation of an ECG. Each peak in the ECG is identified with a letter from $P$ to $T$ that corresponds to a specific electrical activity of the heart.

Which of the following letter shows the incorrect activity of heart?

QRS - Depolarization of the ventricles

R wave - Marks the beginning of the systole.

P- Electrical excitation (or depolarization) of the atria

T wave - Return of the ventricles from excited to normal state (repolarization).

The contraction starts shortly after the $Q$ wave and marks the beginning of the systole.

Q. The given figure represents diagrammatic presentation of an ECG. Each peak in the ECG is identified with a letter from P to T that corresponds to a specific electrical activity of the heart. Which of the following letter shows the incorrect activity of heart?