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Q. No.Which one of the following statements is correct?
1.
Increased ventricular pressure causes closing of the semilunar valves.
2.
The atrio-ventricular node (AVN) generates an action potential to stimulate atrial contraction.
3.
The tricuspid and the bicuspid valves open due to the pressure exerted by the simultaneous contraction of the atria.
4.
Blood moves freely from atrium to the ventricle during joint diastole.
Subtopic: Human Heart: Cardiac Cycle |
From NCERT
NEET - 2022
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Inadequate supply of oxygen to heart muscles leads to a symptom of acute chest pain. This disorder of the circulatory system is identified as:
1. Angina pectoris
2. Cardiac arrest
3. Heart failure
4. Coronary Heart Disease
Subtopic: DISORDERS OF CIRCULATORY SYSTEM |
85%
From NCERT
NEET - 2022
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Mark the correct match in the given graph of ECG.
1. P wave ® Completion of atrial systole
2. QRS wave ® completion of ventricular systole
3. QT – interval ® Completion of first heart sound
4. T wave ® End of atrial repolarisation
Subtopic: ECG & Coronary Artery Disease |
From NCERT
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A:
There is a slight time difference between atrial filling and the ejection of blood
from ventricle.
R: First of all SA node generate impulse for atria filling and after that impulse travel to purkinje fibers for ventricular contraction.
In the following questions a statement of assertion (A) is followed by a statement of reason (R).
1. If both Assertion & Reason are true and the reason is the correct explanation of the assertion, then mark (1)
2. If both Assertion & Reason are true but the reason is not the correct explanation of the assertion, then mark (2)
3. If Assertion is true statement but Reason is false, then mark (3)
4. If both Assertion and Reason are false statements, then mark (4)
R: First of all SA node generate impulse for atria filling and after that impulse travel to purkinje fibers for ventricular contraction.
In the following questions a statement of assertion (A) is followed by a statement of reason (R).
1. If both Assertion & Reason are true and the reason is the correct explanation of the assertion, then mark (1)
2. If both Assertion & Reason are true but the reason is not the correct explanation of the assertion, then mark (2)
3. If Assertion is true statement but Reason is false, then mark (3)
4. If both Assertion and Reason are false statements, then mark (4)
- If both the assertion and the reason are true and the reason is a correct explanation of the assertion
- If both the assertion and reason are true but the reason is not a correct explanation of the assertion
- If the assertion is true but the reason is false
- If both the assertion and reason are false
Subtopic: Human Heart: Double Circulation |
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Which of the following would occur if an impulse from the SA node were blocked before it reaches the AV node?
1. The heart would not contract
2. Only the atria would contract
3. Only the ventricle would contract
4. Blood would travel only to the pulmonary system
1. The heart would not contract
2. Only the atria would contract
3. Only the ventricle would contract
4. Blood would travel only to the pulmonary system
Subtopic: Rhythmic Excitation of Human Heart: Part 1 | Rhythmic Excitation of Human Heart: Part 2 |
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Assertion (A): In ECG by counting the number of QRS complexes, that occur in a given time period, one can determine the heart beat rate of an individual.
Reason (R): The QRS complex represents the depolarization of the ventricles which initiate the ventricular contraction.
In light of the two statements given above, mark the correct option:
1. Both A & R are true and R is the correct explanation of A.
2. Both A & R are true but R is not the correct explanation of A
3. A is true statement but R is false
4. Both A and R are false statements
Reason (R): The QRS complex represents the depolarization of the ventricles which initiate the ventricular contraction.
In light of the two statements given above, mark the correct option:
1. Both A & R are true and R is the correct explanation of A.
2. Both A & R are true but R is not the correct explanation of A
3. A is true statement but R is false
4. Both A and R are false statements
Subtopic: ECG & Coronary Artery Disease |
67%
From NCERT
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The relationship between blood pressure (bp), cardiac output (co), and peripheral resistance (pr) can be expressed as bp = co ´ pr. All of the following changes would result in an increase in blood pressure except.
1. increase in the stroke volume
2. increase in the heart rate
3. increase in the duration of ventricle diastole
4. contraction of the arteriolar smooth muscle.
1. increase in the stroke volume
2. increase in the heart rate
3. increase in the duration of ventricle diastole
4. contraction of the arteriolar smooth muscle.
Subtopic: Human Heart: Cardiac Cycle |
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A: Vital
capacity of an athlete is more than a normal person.
R: Alveolar dead space is less in an athlete than a normal person
In the following questions a statement of assertion (A) is followed by a statement of reason (R).
1. If both Assertion & Reason are true and the reason is the correct explanation of the assertion, then mark (1)
2. If both Assertion & Reason are true but the reason is not the correct explanation of the assertion, then mark (2)
3. If Assertion is true statement but Reason is false, then mark (3)
4. If both Assertion and Reason are false statements, then mark (4)
R: Alveolar dead space is less in an athlete than a normal person
In the following questions a statement of assertion (A) is followed by a statement of reason (R).
1. If both Assertion & Reason are true and the reason is the correct explanation of the assertion, then mark (1)
2. If both Assertion & Reason are true but the reason is not the correct explanation of the assertion, then mark (2)
3. If Assertion is true statement but Reason is false, then mark (3)
4. If both Assertion and Reason are false statements, then mark (4)
- If both the assertion and the reason are true and the reason is a correct explanation of the assertion
- If both the assertion and reason are true but the reason is not a correct explanation of the assertion
- If the assertion is true but the reason is false
- If both the assertion and reason are false
Subtopic: Human Heart: Double Circulation | Human Heart: Cardiac Cycle |
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A: Opening
and closing of Atrio-venticular valve depends upon ventricular pressure.
R: Bicuspid and tricuspid valve prevent back flow of blood from ventricle to atria
In the following questions a statement of assertion (A) is followed by a statement of reason (R).
1. If both Assertion & Reason are true and the reason is the correct explanation of the assertion, then mark (1)
2. If both Assertion & Reason are true but the reason is not the correct explanation of the assertion, then mark (2)
3. If Assertion is true statement but Reason is false, then mark (3)
4. If both Assertion and Reason are false statements, then mark (4)
R: Bicuspid and tricuspid valve prevent back flow of blood from ventricle to atria
In the following questions a statement of assertion (A) is followed by a statement of reason (R).
1. If both Assertion & Reason are true and the reason is the correct explanation of the assertion, then mark (1)
2. If both Assertion & Reason are true but the reason is not the correct explanation of the assertion, then mark (2)
3. If Assertion is true statement but Reason is false, then mark (3)
4. If both Assertion and Reason are false statements, then mark (4)
- If both the assertion and the reason are true and the reason is a correct explanation of the assertion
- If both the assertion and reason are true but the reason is not a correct explanation of the assertion
- If the assertion is true but the reason is false
- If both the assertion and reason are false
Subtopic: Human Heart: Double Circulation |
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A: Ventricles
are fails to contract if SA node does not initiate the impulse.
R: AV node only works when it receive the impulse from SA node.
In the following questions a statement of assertion (A) is followed by a statement of reason (R).
1. If both Assertion & Reason are true and the reason is the correct explanation of the assertion, then mark (1)
2. If both Assertion & Reason are true but the reason is not the correct explanation of the assertion, then mark (2)
3. If Assertion is true statement but Reason is false, then mark (3)
4. If both Assertion and Reason are false statements, then mark (4)
R: AV node only works when it receive the impulse from SA node.
In the following questions a statement of assertion (A) is followed by a statement of reason (R).
1. If both Assertion & Reason are true and the reason is the correct explanation of the assertion, then mark (1)
2. If both Assertion & Reason are true but the reason is not the correct explanation of the assertion, then mark (2)
3. If Assertion is true statement but Reason is false, then mark (3)
4. If both Assertion and Reason are false statements, then mark (4)
- If both the assertion and the reason are true and the reason is a correct explanation of the assertion
- If both the assertion and reason are true but the reason is not a correct explanation of the assertion
- If the assertion is true but the reason is false
- If both the assertion and reason are false
Subtopic: Human Heart: Double Circulation |
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