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Q. No.Consider the given two statements:
Assertion: SA node acts as the normal pacemaker of the human heart.
Reason: SA node is located in the wall of the right atrium.
1. Assertion is true but Reason is false
2. Both Assertion and Reason are true and the Reason correctly explains the Assertion
3. Both Assertion and Reason are true but the Reason does not correctly explain the Assertion
4. Assertion is false but Reason is true
Assertion: SA node acts as the normal pacemaker of the human heart.
Reason: SA node is located in the wall of the right atrium.
1. Assertion is true but Reason is false
2. Both Assertion and Reason are true and the Reason correctly explains the Assertion
3. Both Assertion and Reason are true but the Reason does not correctly explain the Assertion
4. Assertion is false but Reason is true
Subtopic: Human Heart: Gross Anatomy |
73%
From NCERT
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Identify the incorrectly matched pair:
| 1. | Heart failure | The state of heart when it is not pumping blood effectively enough to meet the needs of the body. |
| 2. | Heart attack | The heart muscle is suddenly damaged by an inadequate blood supply. |
| 3. | Angina pectoris | Acute chest pain when excess oxygen is reaching the heart muscle due to vasodilation. |
| 4. | Cardiac arrest | The heart abruptly stops beating. |
Subtopic: DISORDERS OF CIRCULATORY SYSTEM |
79%
From NCERT
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What would not be correct for the recordings seen on an ECG?
1. The P-wave represents the electrical excitation of the atria, which leads to the contraction of both the atria.
2. The ventricular contraction starts shortly after S wave and marks the beginning of the systole.
3. The end of the T-wave marks the end of systole.
4. Since the ECGs obtained from different individuals have roughly the same shape for a given lead configuration, any deviation from this shape indicates a possible abnormality or disease.
1. The P-wave represents the electrical excitation of the atria, which leads to the contraction of both the atria.
2. The ventricular contraction starts shortly after S wave and marks the beginning of the systole.
3. The end of the T-wave marks the end of systole.
4. Since the ECGs obtained from different individuals have roughly the same shape for a given lead configuration, any deviation from this shape indicates a possible abnormality or disease.
Subtopic: ECG & Coronary Artery Disease |
80%
From NCERT
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Consider the two statements:
Statement I: If the duration of a cardiac cycle is 0.8 seconds, the number of heart beats heard through a stethoscope and the number of cardiac cycles per minute will be 75.
Statement II: Neural signals through the sympathetic nerves can increase the rate of heart beat, the strength of ventricular contraction and thereby the cardiac output.
1. Statement I is correct; Statement II is incorrect
2. Statement I is incorrect; Statement II is incorrect
3. Statement I is correct; Statement II is correct
4. Statement I is incorrect; Statement II is correct
Subtopic: Human Heart: Cardiac Cycle |
74%
From NCERT
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How many of the given statements are correct?
I: The largest constituents of plasma are plasma proteins.
II: If kidneys receive 1200 ml blood per minute, then renal plasma flow is 660 ml per minute.
III: Erythroblastosis foetalis can be avoided by administering anti-Rh antibodies to the new born immediately after the delivery.
IV: Calcium ions play a very important role in clotting.
V: Exchange of nutrients, gases, etc., between the blood and the cells always occur through interstitial fluid.
VI: All terrestrial vertebrates have at least a three chambered heart.
1. 1
2. 2
3. 3
4. 4
I: The largest constituents of plasma are plasma proteins.
II: If kidneys receive 1200 ml blood per minute, then renal plasma flow is 660 ml per minute.
III: Erythroblastosis foetalis can be avoided by administering anti-Rh antibodies to the new born immediately after the delivery.
IV: Calcium ions play a very important role in clotting.
V: Exchange of nutrients, gases, etc., between the blood and the cells always occur through interstitial fluid.
VI: All terrestrial vertebrates have at least a three chambered heart.
1. 1
2. 2
3. 3
4. 4
Subtopic: Blood: Blood Group (A,B,O) | Blood: Blood Clotting | Lymph | Blood: General Description & RBC |
From NCERT
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Consider the given two statements:
Assertion: Group ‘O’ blood is ‘universal donor’ and can be donated to persons with any other blood group.
Reason: Persons with ‘AB’ group can accept blood from persons with AB as well as the other groups of blood.
1. Assertion is true but Reason is false
2. Both Assertion and Reason are true and the Reason correctly explains the Assertion
3. Both Assertion and Reason are true but the Reason does not correctly explain the Assertion
4. Assertion is false but Reason is true
Assertion: Group ‘O’ blood is ‘universal donor’ and can be donated to persons with any other blood group.
Reason: Persons with ‘AB’ group can accept blood from persons with AB as well as the other groups of blood.
1. Assertion is true but Reason is false
2. Both Assertion and Reason are true and the Reason correctly explains the Assertion
3. Both Assertion and Reason are true but the Reason does not correctly explain the Assertion
4. Assertion is false but Reason is true
Subtopic: Blood: Blood Group (A,B,O) |
83%
From NCERT
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Which of the following events is usually not seen in a standard ECG?
1. Depolarisation of atria
2. Depolarisation of ventricles
3. Repolarisation of ventricles
4. Repolarisation of atria
1. Depolarisation of atria
2. Depolarisation of ventricles
3. Repolarisation of ventricles
4. Repolarisation of atria
Subtopic: ECG & Coronary Artery Disease |
87%
From NCERT
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A specialised nodal tissue embedded in the lower corner of the right atrium, close to Atrio-ventricular septum, delays the spreading of impulses to heart apex for about 0.1 sec. This delay allows:
1. blood to enter aorta.
2. the ventricles to empty completely.
3. blood to enter pulmonary arteries.
4. the atria to empty completely.
1. blood to enter aorta.
2. the ventricles to empty completely.
3. blood to enter pulmonary arteries.
4. the atria to empty completely.
Subtopic: Human Heart: Gross Anatomy | Human Heart: Cardiac Cycle |
67%
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Match List I with List II
Choose the correct answer from the options given below:
| List I | List II | ||
| A. | P-wave | I. | Beginning of systole |
| B. | Q-wave | II. | Repolarisation of ventricles |
| C. | QRS complex | III. | Depolarisation of atria |
| D. | T-wave | IV. | Depolarisation of ventricles |
Choose the correct answer from the options given below:
| Options: | A | B | C | D |
| 1. | I | II | III | IV |
| 2. | III | I | IV | II |
| 3. | IV | III | II | I |
| 4. | II | IV | I | II |
Subtopic: ECG & Coronary Artery Disease |
85%
From NCERT
NEET - 2023
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Which of the following statements are correct?
Choose the correct answer from the options given below:
| A: | Basophils are most abundant cells of the total WBCs. |
| B: | Basophils secrete histamine, serotonin and heparin. |
| C: | Basophils are involved in inflammatory response. |
| D: | Basophils have kidney shaped nucleus. |
| E: | Basophils are agranulocytes. |
| 1. | A and B only | 2. | D and E only |
| 3. | C and E only | 4. | B and C only |
Subtopic: Blood: White Blood Cells | Blood: General Description & RBC |
85%
From NCERT
NEET - 2023
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