If the stroke volume of Human heart is considered 80 mL and to pump 5L of blood how many beats are required?

(1) 63

(2) 70

(3) 72

(4) 60

Subtopic:  Human Heart: Cardiac Cycle |
 59%
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The lub sound of heart is produced during which phase of cardiac cycle?

(1) ventricular systole

(2) atrial diastole

(3) joint diastole

(4) atrial systole

Subtopic:  Human Heart: Cardiac Cycle |
 67%
From NCERT
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The sequence of opening (O) and closing (C) of heart –valves are:

(1) AV valves open before the closure of SL or semilunar valves.

(2) AV valves close before the closure of SL or semilunar valves.

(3) AV valves open after the closure of SL or semilunar valves.

(4) AV valves close with closure of SL or semilunar valves.

Subtopic:  Human Heart: Cardiac Cycle |
 52%
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The machine taking the reading of electrical activity of heart is known as

(1) Electrocardiogram

(2) Electrocardiograph

(3) MRI

(4) Biopsy

Subtopic:  ECG & Coronary Artery Disease |
 75%
From NCERT
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The results of ECG are known as

(1) Electrocardiogram

(2) Electrocardiograph

(3) MRI

(4) Biopsy

Subtopic:  ECG & Coronary Artery Disease |
 78%
From NCERT
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The standard ECG is obtained by connecting the patient to the machine with how many leads?

(1) 4

(2) 3

(3) 1

(4) 2

Subtopic:  ECG & Coronary Artery Disease |
 83%
From NCERT
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If one wants to analyse the detailed cardiac activity, the multiple leads are attached to–

(1) Wrist and arms

(2) Abdomen

(3) Chest region

(4) all the fingers

Subtopic:  ECG & Coronary Artery Disease |
 69%
From NCERT
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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%
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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%
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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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