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Q. No.Cardiac activities of the heart are regulated by :
Choose the correct answer from the options given below :
| A. | Nodal tissue |
| B. | A special neural centre in the medulla oblongata |
| C. | Adrenal medullary hormones |
| D. | Adrenal cortical hormones |
Choose the correct answer from the options given below :
| 1. | A, C and D only |
| 2. | A, B and D only |
| 3. | A, B and C only |
| 4. | A, B C and D |
Subtopic: Â Regulation of Cardiac Activity |
 63%
From NCERT
NEET - 2025
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Following are the stages of pathway for conduction of an action potential through the heart:
A. AV bundle
B. Purkinje fibres
C. AV node
D. Bundle branches
E. SA node
Choose the correct sequence of pathway from the options given below :
1. A-E-C-B-D
2. B-D-E-C-A
3. E-A-D-B-C
4. E-C-A-D-B
A. AV bundle
B. Purkinje fibres
C. AV node
D. Bundle branches
E. SA node
Choose the correct sequence of pathway from the options given below :
1. A-E-C-B-D
2. B-D-E-C-A
3. E-A-D-B-C
4. E-C-A-D-B
Subtopic: Â Human Heart: Cardiac Cycle |
 82%
From NCERT
NEET - 2024
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Match List I with List II:
Choose the correct answer from the options given below:
1. A-III, B-II, C-IV, D-I
2. A-II, B-III, C-I, D-IV
3. A-IV, B-II, C-I, D-III
4. A-I, B-III, C-IV, D-II
| List I | List II | ||
| A. | P wave | I. | Heart muscles are electrically silent |
| B. | QRS complex | II. | Depolarisation of ventricles. |
| C. | T wave | III. | Depolarisation of atria. |
| D. | T-P gap | IV. | Repolarisation of ventricles. |
Choose the correct answer from the options given below:
1. A-III, B-II, C-IV, D-I
2. A-II, B-III, C-I, D-IV
3. A-IV, B-II, C-I, D-III
4. A-I, B-III, C-IV, D-II
Subtopic: Â ECG & Coronary Artery Disease |Â Circulatory Pathways |
 86%
From NCERT
NEET - 2024
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In standard ECG diagram, the P-wave represents:
1. Depolarisation of the atria
2. Repolarisation of the ventricle
3. Depolarisation of the ventricle
4. End of systole
1. Depolarisation of the atria
2. Repolarisation of the ventricle
3. Depolarisation of the ventricle
4. End of systole
Subtopic: Â ECG & Coronary Artery Disease |
 94%
From NCERT
NEET - 2024
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Match List-I with List-II:
Choose the correct answer from the options given below:
1. A-III, B-IV, C-II, D-I
2. A-II, B-I, C-IV, D-III
3. A-III, B-IV, C-I, D-II
4. A-I, B-IV, C-II, D-III
| List-I | List-II | ||
| A. | Tricuspid valves | I. | Guards the opening between right atrium and right ventricle |
| B. | Sino-atrial node | II. | Guards the opening between the left atrium and the left ventricle |
| C. | Mitral valves | III. | Guards the opening of right and left ventricles into pulmonary artery and aorta, respectively |
| D. | Semilunar valves | IV. | Cardiac musculature in the right upper corner of right atrium |
1. A-III, B-IV, C-II, D-I
2. A-II, B-I, C-IV, D-III
3. A-III, B-IV, C-I, D-II
4. A-I, B-IV, C-II, D-III
Subtopic: Â Human Heart: Gross Anatomy |Â Human Heart: Cardiac Cycle |Â Circulatory Pathways |
 85%
From NCERT
NEET - 2024
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A person with blood group A Rh- can receive the blood transfusion from which of the following types?
A. B Rh-
B. AB Rh-
C. O Rh-
D. A Rh-
E. A Rh+
Choose the correct answer from the options given below:
A. B Rh-
B. AB Rh-
C. O Rh-
D. A Rh-
E. A Rh+
Choose the correct answer from the options given below:
| 1. | D and E only | 2. | D only |
| 3. | A and B only | 4. | C and D only |
Subtopic: Â Blood: Blood Group (A,B,O) |
 82%
From NCERT
NEET - 2024
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'Lub' sound of heart is caused by the ___________.
1. closure of the semilunar valves
2. opening of tricuspid and bicuspid valves
3. opening of the semilunar valves
4. closure of the tricuspid and bicuspid valves
1. closure of the semilunar valves
2. opening of tricuspid and bicuspid valves
3. opening of the semilunar valves
4. closure of the tricuspid and bicuspid valves
Subtopic: Â Human Heart: Cardiac Cycle |
 77%
From NCERT
NEET - 2024
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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: Â ECG & Coronary Artery Disease |
 87%
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: Â Blood: White Blood Cells |Â Blood: General Description & RBC |
 86%
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NEET - 2023
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Match List - I with List - II
Choose the correct answer from the options given below:
| List-I (ECG) | List-II (Electrical activity of heart) | ||
| (A) | P-wave | (I) | Depolarisation of ventricles |
| (B) | QRS complex | (II) | End of systole |
| (C) | T wave | (III) | Depolarisation of atria |
| (D) | End of T wave | (IV) | Repolarisation of ventricles |
Choose the correct answer from the options given below:
| Options: | (A) | (B) | (C) | (D) |
| 1. | IV | I | III | II |
| 2. | I | IV | III | II |
| 3. | IV | III | I | II |
| 4. | III | I | IV | II |
Subtopic: Â ECG & Coronary Artery Disease |
 92%
From NCERT
NEET - 2023
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