Look at the picture keenly and find out the correct answer.

T wave is due to auricular repolarisation

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P- wave is a guide to the activity of atria (auricles)

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Q wave represents ventricular sepal sepolarisation

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R and S are due to depolarisation of auricular muscle.

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Solution

The correct option is B P- wave is a guide to the activity of atria (auricles)
The given diagram represents the electrocardiogram (ECG) that represents the activity of the heart during the heartbeat. The following diagram shows the readings that are depicted by the different waves of an ECG:

Hence, the correct answer is 'P- wave is a guide to the activity of atria (auricles)'

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Similar questions

P-wave of ECG indicates:

(1) Depolarisation of atrial muscles

(2) Activation of the SA node

(3) Spread of excitation from the SA node to the V node

(4) Repolarisation of atria and depolarisation of ventricle

Q. Match the Column - I with Column - II.

	Column I		Column II
A	P-wave	1	Depolarisation of ventricles
B	QRS complex	2	Repolarisation of ventricles
C	T-wave	3	Coronary ischemia
D	Inversion of T-wave	4	Depolarisation of atria
		5	Repolarisation of atria

ECG depicts the depolarisation and repolarisation process during the cardiac cycle. In the ECG of a normal healthy individual one of the following waves is not represented.
(a) Depolarisation of atria
(b) Repolarisation of atria
(c) Depolarisation of ventricles
(d) Repolarisation of ventricles

Q. Match the following:

\begin{matrix} A. P wave & i) depolarisation of atria B. T wave & ii) repolarisation of ventricles C. QRS wave & iii) depolarisation of ventricles \end{matrix}

Q. ECG depicts the depolarisation and repolarisation processes during the cardiac cycle. In the ECG of a normal healthy individual one of the waves are not represented. Which wave is that? Explain.

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