What does the QRS complex represent in ECG?

(1) Atrial Diastole

(2) Atrial systole

(3) ventricular systole

(4) Joint Diastole

Subtopic:  ECG & Coronary Artery Disease |
 91%
From NCERT
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What does the T wave represents in ECG?

(1) Atrial Diastole

(2) Atrial systole

(3) ventricular Diastole

(4) Joint Diastole

Subtopic:  ECG & Coronary Artery Disease |
 77%
From NCERT
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What does the depolarization of ventricles initiate?

(1) Atrial Diastole

(2) Atrial systole

(3) ventricular systole

(4) Joint Diastole

Subtopic:  Rhythmic Excitation of Human Heart: Part 1 |
 73%
From NCERT
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By counting number of QRS complex, one may get which information?

(1) Rate of breathing

(2) cardiac output

(3) Heart beat rate

(4) stroke volume

Subtopic:  ECG & Coronary Artery Disease |
 78%
From NCERT
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The deviation from the characteristic ECG indicates a possible abnormality; this information can be utilized in which field of Biology?

(1) Clinical Biology

(2) Biotechnology

(3) Molecular Biology

(4) Pedigree analysis

Subtopic:  ECG & Coronary Artery Disease |
 87%
From NCERT
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Depolarisation and repolarisation actually initiate ___________ in different chambers of heart?

(1) contraction and relaxation

(2) relaxation and contraction

(3) thickening and thinning

(4) thinning and thickening

Subtopic:  Rhythmic Excitation of Human Heart: Part 1 | Rhythmic Excitation of Human Heart: Part 2 |
 91%
From NCERT
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Three lead configuration of ECG has arrangement?

(1) one to each wrist and one to right ankle.

(2) one to each ankle and one to right wrist.

(3) one to each wrist and one to left ankle

(4) one to each ankle and one to left wrist.

Subtopic:  ECG & Coronary Artery Disease |
 83%
From NCERT
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Which wave of ECG represents repolarization?

(1) P wave

(2) QRS complex

(3) ST wave

(4) T wave

Subtopic:  ECG & Coronary Artery Disease |
 89%
From NCERT
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The passage of blood from left atrium to body is

(1) left atrium – left ventricle – Aorta – Body

(2) left atrium – right ventricle – Aorta – Body

(3) left atrium – left ventricle – Pulmonary Artery – Body

(4) left atrium – left ventricle – Pulmonary Veins – Body

Subtopic:  Human Heart: Double Circulation |
 82%
From NCERT
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The passage of blood from right atrium to body is

(1) right atrium–right ventricle–pulmonary vein–body

(2) right atrium–right ventricle–pulmonary artery–lung

(3) right atrium– left ventricle–pulmonary vein–body

(4)right atrium–left ventricle–pulmonary artery–lung

Subtopic:  Human Heart: Double Circulation |
 83%
From NCERT
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