To obtain a standard ECG, a patient is connected to the machine with three electrical leads including all the following except:

 
1. One to right wrist 2. One to left wrist
3. One to right ankle 4. One to left ankle

Subtopic:  ECG & Coronary Artery Disease |
 79%
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During a cardiac cycle, the ventricular systole will lead to:
1. ventricular filling.
2. the atrioventricular valves to close, and then the semilunar valves to open.
3. the semilunar valves to close, and then the atrioventricular valves to open.
4. pressure to become greater in the aorta and pulmonary trunk than in the ventricles.
Subtopic:  Human Heart: Cardiac Cycle |
 84%
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The ‘double circulation’ of humans includes:
I.  Systemic circulation
II. Coronary circulation
III. Pulmonary circulation
IV. Portal circulation
1. I and III only 2. I and II only
3. II and IV only 4. II and III only
Subtopic:  Human Heart: Double Circulation |
 91%
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Consider the two given statements:
I: Pulmonary circulation carries deoxygenated blood to the lungs and brings oxygenated blood back to the heart.
II: The systemic circulation provides nutrients, oxygen and other essential substances to the tissues and takes carbon dioxide and other harmful substances away for elimination.
1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
Subtopic:  Human Heart: Cardiac Cycle |
 89%
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The cardiac output can be increased by:
I. Sympathetic neural signals
II. Adrenal cortical hormones

1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
Subtopic:  Regulation of Cardiac Activity |
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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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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 |
 63%

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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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What will be true for the white blood cells shown in the given diagram?
 
A. The number of I is increased in worm infestations and II secretes histamine and heparin in the blood.
B. III plays a vital role in acquired immunity.
C. The number of IV is significantly reduced in acute bacterial infections.
 
1. Only B 2. Only A and B
3. Only C 4. A, B and C
Subtopic:  Blood: General Description & RBC |
 51%

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Typically, blood type tests are performed through addition of a blood sample to a solution containing antibodies corresponding to each antigen. The presence of an antigen on the surface of the blood cells is indicated by agglutination. Predict the blood groups in results P, Q, R and S:
 
 
P Q R S
1. O positive A negative B positive AB negative
2. O positive A negative B negative AB positive
3. O negative A positive B negative AB negative
4. O negative A negative B positive AB positive
Subtopic:  Blood: Blood Group (A,B,O) |
 54%

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