The period of systole is represented on surface ECG as between:
1. Beginning of P wave and beginning of Q wave
2. End of S wave and beginning of T wave
3. Shortly after Q wave and end of the T wave
4. Two successive R waves
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Which of the following can be called as a ‘cascade’ process?
1. | Micturition reflex |
2. | Formation of cross bridges in skeletal muscle contraction |
3. | Coagulation of blood |
4. | Regulation of respiration |
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The deoxygenated blood from the cardiac muscles is returned to the right atrium by:
1. | coronary sinus | 2. | pre-caval vein |
3. | post-caval vein | 4. | pulmonary veins |
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Identify the incorrectly matched pair:
1. Average duration of a cardiac cycle: 0.8 sec
2. Stroke volume of each ventricle: 120 ml
3. Highest normal systolic blood pressure: 140 mm Hg
4. Highest normal diastolic blood pressure: 90 mm Hg
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To begin the blood clot formation cascade, the enzyme complex required is:
1. | Thromboxane A2 | 2. | Thrombin |
3. | Thrombokinase | 4. | Heparin |
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A person has type A antigen on RBC and anti-B antibodies in plasma. He can receive blood from a person with blood group:
1. | A and O | 2. | AB, A, B and O |
3. | B and O | 4. | Only O |
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In the nodal tissue of the human heart, a conduction delay is seen in:
1. | SA node | 2. | AV node |
3. | AV bundle | 4. | Purkinje fibers |
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All vertebrates posses a:
1. muscular chambered heart | 2. renal portal system |
3. nucleated RBC | 4. double circulation |
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To prevent eryhtroblastosis fetalis in future pregnancies:
1. | Anti-Rh Immunoglobulins must be given to Rh –ve mothers at the time of each delivery |
2. | Anti-Rh Immunoglobulins must be given to new born at the time of each delivery |
3. | Rh Antigens must be given to new born at the time of each delivery |
4. | Anti Antigens must be given to Rh –ve mothers at the time of each delivery |
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Another name for lymph would be:
1. | Extra-cellular fluid | 2. | Tissue fluid |
3. | Plasma ultrafiltrate | 4. | Serous fluid |
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