If the duration of a cardiac cycle is 0.8 seconds, what number of cardiac cycles are expected to occur in one minute?
1. 48
2. 60
3. 75
4. 100
Subtopic:  Human Heart: Cardiac Cycle |
 84%
From NCERT
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Person with blood group AB is considered as universal recipient because he has:

1. both A and B antigens on RBC but no antibodies in the plasma
2. both A and B antibodies in the plasma
3. no antigen on RBC and no antigens in the plasma
4. both A and B antigens in the plasma but no antibodies

Subtopic:  Blood: Blood Group (A,B,O) |
 79%
From NCERT
AIPMT - 2014
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The valve between the right atrium and right ventricle is the
1. mitral valve
2. semilunar valve
3. tricuspid valve
4. pulmonary valve
 
Subtopic:  Human Heart: Gross Anatomy |
 91%
From NCERT
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Match the items given in Column I with those in Column II and select the correct option given below: 

Column I Column II
(a) Tricuspid valve  (i) Between left atrium and left ventricle 
(b) Bicuspid valve (ii) Between right ventricle and pulmonary artery 
(c) Semilunar valve (iii) Between right atrium and right ventricle
   
Options: (a) (b) (c)
1. (iii) (i) (ii)
2. (i) (iii) (ii)
3. (i) (ii) (iii)
4. (ii) (i) (iii)
Subtopic:  Human Heart: Gross Anatomy |
 81%
From NCERT
NEET - 2018
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The diagram given here is the standard ECG of a normal person, The P - wave represents the:

 170951
1. Initiation of the ventricular contraction
2. Beginning of the systole
3. End of systole
4. Contraction of both the atria
Subtopic:  ECG & Coronary Artery Disease |
 77%
From NCERT
AIPMT - 2013
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Blood pressure in the mammalian aorta is maximum during:

1. systole of the left atrium
2. diastole of the right ventricle
3. systole of the left ventricle
4. diastole of the right atrium

Subtopic:  Human Heart: Cardiac Cycle |
 73%
From NCERT
NEET - 2015
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 Match List - I with List - II
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:  ECG & Coronary Artery Disease |
 92%
From NCERT
NEET - 2023
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Match the items given in Column-I with those in Column-II and select the correct option given below:

Column-I Column-II
a. Fibrinogen i. Osmotic balance
b. Globulin ii. Blood clotting
c. Albumin iii. Defense mechanism
 
a b c
1. iii ii i
2. i ii iii
3. i iii ii
4. ii iii i
Subtopic:  Blood: General Description & RBC: Part 1 | Blood: General Description & RBC |
 92%
From NCERT
NEET - 2018
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Match the following columns and select the correct option:

Column-I Column-I
(a)  Eosinophils    (i) Immune response 
(b)  Basophils (ii) Phagocytosis
(c)  Neutrophils  (iii) Release histaminase, 
destructive enzymes 
(d)  Lymphocytes  (iv) Release granules containing histamine 
 
(a) (b) (c) (d)
1. (iv) (i) (ii) (iii)
2. (i) (ii) (iv) (iii)
3. (ii) (i) (iii) (iv)
4. (iii) (iv) (ii) (i)
Subtopic:  Blood: General Description & RBC: Part 2 | Blood: White Blood Cells | Blood: General Description & RBC |
 83%
From NCERT
NEET - 2020
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Consider the given two statements:
Assertion (A):  Open circulatory system is considered to be more advantageous than the closed circulatory system.
Reason (R):  The flow of fluid can be more precisely regulated in open circulatory system than in closed circulatory system.
 
1. Both (A) and (R) are True, and (R) is the correct explanation of (A).
2. Both (A) and (R) are True, but (R) is not the correct explanation of (A).
3. (A) is True, but (R) is False.
4. Both (A) and (R) are False
Subtopic:  Circulatory Pathways |
 96%
From NCERT
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