Congestion of ________ is the main symptom of ________.

1. Blood vessels, Heart failure

2. Blood vessels, Cardiac Arrest

3. Lungs, Heart failure

4. Blood vessels, Angina

Subtopic:  Atherosclerosis, Hypertension & Ventricular Fibrillation |
 67%
From NCERT
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The value of beat volume is

(1) 5L

(2) 70 mL

(3) 140 mL

(4) 90 mL

Subtopic:  Human Heart: Cardiac Cycle |
 73%
From NCERT
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The action potential causes ______ and then the ______ to undergo ______ followed by ______.

(1) ventricles, atria, contraction, relaxation

(2) atria, ventricles, contraction, relaxation

(3) ventricles, atria, relaxation, contraction

(4) atria, ventricles, relaxation, contraction

Subtopic:  Rhythmic Excitation of Human Heart: Part 1 | Rhythmic Excitation of Human Heart: Part 2 |
 86%
From NCERT
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Angina is more common in–

(1) Young Men

(2) Aged Women

(3) Middle aged and elderly men and women

(4) children

Subtopic:  ECG & Coronary Artery Disease |
 93%
From NCERT
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The action potential of ventricular side and to the entire ventricular musculature is conducted by–

(1) AVN, AV bundle and Bundle of His

(2) SAN, AVN, AV bundle and Bundle of His

(3) SAN, AV bundle and Bundle of His

(4) Only by Bundle of His

Subtopic:  Rhythmic Excitation of Human Heart: Part 1 |
From NCERT
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The tricuspid and bicuspid Valves are closed because of

(1) Atrial systole

(2) Attempted backflow of blood into the atria

(3) Ventricular relaxation

(4) Ventricular filling

Subtopic:  Human Heart: Cardiac Cycle |
 81%
From NCERT
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Arrange the following events in a proper sequence.

(i) Increased ventricular pressure

(ii) Attempted backflow of blood into the atria

(iii) Ventricular systole

(iv) Closure of AV valves

(1) (i) – (ii) – (iii) – (iv)

(2) (ii) – (i) – (iii) – (iv)

(3) (iii) – (i) – (ii) – (iv)

(4) (i) – (iii) – (ii) – (iv)

Subtopic:  Human Heart: Cardiac Cycle |
 58%
From NCERT
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Imagine, if the semilunar valves do not work, which of the following event won’t happen surely?

(1) Atrial Contraction

(2) Ventricular Contraction

(3) flow of blood

(4) Heart sound production

Subtopic:  Human Heart: Cardiac Cycle |
 58%
From NCERT
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SAN is responsible for

(1) initiating and maintaining a random contractile ability of heart

(2) initiating and maintaining a rhythmic contractile ability of heart

(3) maintaining a random contractile ability of heart

(4) Initiating a rhythmic contractile ability of heart

Subtopic:  Rhythmic Excitation of Human Heart: Part 1 |
 85%
From NCERT
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Semilunar valves are found between

1. left ventricle and aorta

2. right ventricle and pulmonary artery

3. left ventricle and pulmonary vein

4. both (1) and (2)

Subtopic:  Human Heart: Gross Anatomy |
 80%
From NCERT
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