Q. No.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
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| 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. |
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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 |
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| 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. |
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
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| 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 |
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| 1. | A | 2. | B |
| 3. | C | 4. | None |
| 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. |
2. Only Statement II and Statement III
3. None of the three statements is true
4. Statement I, Statement II and Statement III
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| 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 |
| 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 |
| 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 |
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