Identify the correct statements regarding the labelled structures shown in the given diagram of the human heart:
Statement I: A carries oxygenated blood and B carries deoxygenated blood.
Statement II: D and C close simultaneously during the beginning of ventricular diastole.    
Statement III: E and F close simultaneously during the beginning of ventricular systole.

1. Only Statement I
2. Only Statement II and Statement III
3. None of the three statements is true
4. Statement I, Statement II and Statement III

Subtopic:  Human Heart: Gross Anatomy | Human Heart: Cardiac Cycle |
 64%
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The given diagram shows:
 
1. atherosclerosis in the blood vessel that causes coronary artery disease
2. narrowing of lumen of coronary artery that causes congestive heart failure
3. vasoconstriction of the lumen of coronary artery that causes angina pectoris
4. the collection of platelets in blood vessel caused by viral infections like dengue that can damage the heart muscle
Subtopic:  Atherosclerosis, Hypertension & Ventricular Fibrillation |
 76%
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Match List - I with List - II
 List - I (Biological Molecules)  List - II (Biological functions)
(a) Glycogen (i) Hormone
(b) Globulin (ii) Biocatalyst
(c) Steroids (iii) Antibody
(d) Thrombin (iv) Storage product
Choose the correct answer from the options given below:
(a) (b) (c) (d)
1. (iv) (iii) (i) (ii)
2. (iii) (ii) (iv) (i)
3. (iv) (ii) (i) (iii)
4. (ii) (iv) (iii) (i)
Subtopic:  Blood: Blood Clotting | Blood: General Description & RBC |
 86%
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Choose the correct option to complete the analogy.
Between right atrium and right ventricle :
Tricuspid valve :: Between left ventricle and aorta : ___________
1. Semilunar valve
2. Pulmonary valve
3. Bicuspid valve
4. Mitral valve
Subtopic:  Human Heart: Gross Anatomy | Human Heart: Cardiac Cycle |
 77%
From NCERT
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Read the given statements carefully:
A. RBCs are devoid of nucleus in most of the mammals and are biconvex in shape.
B. Lymph has the same mineral distribution as that in plasma.
C. By counting the number of QRS complexes in ECG that occur in a given time period, one can determine the heartbeat rate of an individual.
D. Heart is an endodermally derived organ.
How many of the given statements are correct?
1. Three
2. Four
3. Two
4. One
Subtopic:  Human Heart: Gross Anatomy | ECG & Coronary Artery Disease | Lymph | Blood: General Description & RBC |
 62%
From NCERT
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Assertion (A): The walls of ventricles are much thicker than that of the atria.
Reason (R): Ventricles pump blood to different organs and the pressure with which the blood flows through them is much more than the auricles.
In the light of above statements, choose the correct option.
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:  Human Heart: Double Circulation |
 85%
From NCERT
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Choose the incorrect match.
1. Atherosclerosis – Lumen of arteries become narrower
2. Heart attack – Congestive heart failure
3. Angina pectoris – Acute chest pain
4. Heart failure – Heart is not pumping blood effectively
Subtopic:   DISORDERS OF CIRCULATORY SYSTEM |
 82%
From NCERT
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Match the formed elements in column I with their percent of total WBCs in column II and select the correct option:
Column I Column II
(a) Eosinophils (i) 60-65%
(b) Monocytes (ii) 0.5-1%
(c) Basophils (iii) 6-8%
(d) Neutrophils (iv) 2-3%
 
(a) (b) (c) (d)
1. (iii) (iv) (ii) (i)
2. (i) (ii) (iii) (iv)
3. (iv) (iii) (ii) (i)
4. (iv) (iii) (i) (ii)
Subtopic:  Blood: White Blood Cells | Blood: General Description & RBC |
 81%
From NCERT
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To obtain a standard ECG, a patient is connected to the machine with three electrical leads attached one to each ‘A’ and to the ‘B’. Select the option correctly representing A and B.
     A                           B
1. Wrist             Left chest region
2. Ankle             Left wrist
3. Wrist              Left ankle
4. Ankle             Left chest region
Subtopic:  ECG & Coronary Artery Disease |
 88%
From NCERT
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During which stage of the cardiac cycle, as shown in the given figure, does active ventricular filling take place?
 
 
1. A 2. B
3. C 4. None
Subtopic:  Human Heart: Cardiac Cycle |
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