The WBC count of a person's blood sample is 8000/cu.mm. How many eosinophils and lymphocytes would be in the same blood sample approximately?
1. 160 – 240/cu.mm and 1600 – 2000/cu.mm, respectively
2. 100 – 120/cu.mm and 160 – 200/cu.mm, respectively
3. 300 – 500/cu.mm and 500 – 700/cu.mm, respectively
4. 300 – 500/cu.mm and 1200 – 1500/cu.mm, respectively
Subtopic:  Blood: White Blood Cells |
 70%
Level 2: 60%+
NEET - 2026
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Select the incorrect statements with reference to Rh grouping.
A. Erythroblastosis foetalis is a condition observed having foetus with \(Rh^{-ve}\) blood and mother with \(Rh^{-ve}\) blood.
B. Rh antigen is observed on RBCs in the majority of human beings.
C. Before blood transfusion, Rh group should also be matched.
D. Rh incompatibility is observed when a pregnant mother is \(Rh^{-ve}\) and the foetus is \(Rh^{-ve}\)
E. Erythroblastosis foetalis can be avoided by administering anti-Rh antibodies to the mother immediately after the delivery of the second child.
Choose the answer from the options given below:
1. A and E only 2. A and B only
3. B and C only 4. C and D only
Subtopic:  Blood: Blood Group (A,B,O) |
 59%
Level 3: 35%-60%
NEET - 2026
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Which of the following statements is incorrect?
1. Fibrinogen is produced from fibrin
2. Blood coagulates in response to an injury
3. Blood clot consists of fibrins
4. Fibrin is produced from fibrinogen
Subtopic:  Blood: Blood Clotting |
 90%
Level 1: 80%+
NEET - 2026
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The number of action potentials generated by sino-arterial node (SAN) in a healthy human is _____ per minute.
1. 120 - 140
2. 28 - 30
3. 70 - 75
4. 100 - 110
Subtopic:  Human Heart: Double Circulation |
 95%
Level 1: 80%+
NEET - 2026
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Which of the following is not a part of human central neural system ?
1. Pericardium
2. Arachnoid
3. Dura mater
4. Pia mater
 
Subtopic:  Human Heart: Gross Anatomy |
 96%
Level 1: 80%+
NEET - 2026
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The opening between the right atrium and the right ventricle is guarded by ___________.
1. sino-atrial node
2. bicuspid valve
3. tricuspid valve
4. semilunar valve
Subtopic:  Human Heart: Gross Anatomy |
 79%
Level 2: 60%+
NEET - 2026
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Cardiac activities of the heart are regulated by : 
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:  Regulation of Cardiac Activity |
 63%
Level 2: 60%+
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
Subtopic:  Human Heart: Cardiac Cycle |
 84%
Level 1: 80%+
NEET - 2024
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Match List-I with List-II: 
List-I List-II
A. P wave I. Heart muscles are electrically silent
B. QRS complex II. Depolarization of ventricles.
C. T wave III. Depolarization of atria.
D. T-P gap  IV. Repolarization 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:  ECG & Coronary Artery Disease | Circulatory Pathways |
 87%
Level 1: 80%+
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
Subtopic:  ECG & Coronary Artery Disease |
 94%
Level 1: 80%+
NEET - 2024
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