A tricuspid valve will prevent of blood flow from:
1 Right atrium to right ventricle
2. Right ventricle to right atrium
3. Left atrium to left ventricle
4. Left ventricle to left atrium

Subtopic:  Human Heart: Gross Anatomy |
 65%
From NCERT
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Purkinje fibers are:

(1) Intrinsic neural fibers in the ventricles

(2) Muscle fibers that interconnect SA node and AV node

(3) Muscle fibers that are distributed in the ventricular musculature

(4) Neural fibers that spread the impulse throughout the ventricular muscle mass

 

Subtopic:  Rhythmic Excitation of Human Heart: Part 1 |
 73%
From NCERT
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When the stroke volume of the ventricles is much less than the expected values, the heart is said to be:

(1) Fibrillating

(2) Blocked

(3) Arrested

(4) Failing                  

Subtopic:  Atherosclerosis, Hypertension & Ventricular Fibrillation |
 63%
From NCERT
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On a surface ECG, the end of ventricular systole is marked by:

(1) The end of the QRS complex

(2) The beginning of T wave

(3) The end of T wave

(4) The beginning of P wave

 

Subtopic:  ECG & Coronary Artery Disease |
 53%
From NCERT
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A normal blood pressure reading in a healthy adult human being would be:
I. 116/76 mm Hg
II. 150/80 mm Hg
III. 120/ 94 mm Hg
1. Only I
2. Both I and II
3. Both I and III
4. I, II and III

Subtopic:  Atherosclerosis, Hypertension & Ventricular Fibrillation |
 55%
From NCERT
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During the cardiac cycle, the AV valves close during:
1. Early ventricular systole
2. Late ventricular systole
3. Early ventricular diastole
4. Late ventricular diastole

Subtopic:  Human Heart: Cardiac Cycle |
 78%
From NCERT
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A chronic condition in which the heart doesn’t pump blood as well as it should is called as:
1. Angina pectoris

2. Heart attack

3. Heart failure

4. Heart block

Subtopic:  Atherosclerosis, Hypertension & Ventricular Fibrillation |
 80%
From NCERT
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The cells that produce the smallest formed elements of the blood are called
1. erythroblasts

2. megakaryocytes

3. myeloblasts

4. thrombocytes

Subtopic:  Blood: General Description & RBC: Part 1 | Blood: General Description & RBC |
 70%
From NCERT
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Persons with Rh ____________ blood never exhibit Rh ____________.
1. negative; incompatibility
2. negative; antibodies
3. positive; surface antigens
4. positive; antibodies

Subtopic:  Blood: Blood Group |
From NCERT
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What happens during ventricular diastole?
1. both ventricles fill with blood
2. both semilunar valves remain open
3. both AV valves remain closed
4. both ventricles contract

Subtopic:  Human Heart: Cardiac Cycle |
 62%
From NCERT
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