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 |
I: | A is the normal pacemaker of the human heart and B is the pace-setter of the human heart. |
II: | While A is made up of muscle tissue, B is made up of neural tissue. |
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I: | The tunica media in the wall of the artery is thicker than the tunica media in the wall of the vein. |
II: | Artery is shown in red colour as all arteries without exception carry oxygenated blood and vein is shown in blue colour as all arteries without exception carry deoxygenated blood. |
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I: | A | Cardiac centre in Medulla oblongata |
II: | B and C | Subdivisions of Autonomic Neural System having antagonist effects on heart |
III: | D | Catecholamines acting both as neurotransmitters and hormones |
1. | Only I and II | 2. | Only I and III |
3. | Only II and III | 4. | I, II and III |
A | Plasma | 55% |
B | Buffy coat | WBCs and Platelets |
C | RBC | Approx. 45 % |
1. | Only A and B | 2. | Only A and C |
3. | Only B and C | 4. | A, B and C |
A | B | C | |
1. | Vessel contracts | Platelet plug formation | Fibrin clot formation |
2. | Vessel dilates | Platelet plug formation | Fibrin clot formation |
3. | Vessel contracts | Fibrin clot formation | Platelet plug formation |
4. | Vessel dilates | Fibrin clot formation | Platelet plug formation |
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1. | Only B | 2. | Only A and B |
3. | Only C | 4. | A, B and C |
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 |
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. |
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1. | A | 2. | B |
3. | C | 4. | None |