Q. No.The enzyme that activates fibrinogens in the blood is:
1.
Thromboplastin
2.
Thrombokinase
3.
Thrombin
4.
Plasmin
Blood enters the heart because muscles of the:
| 1. | ventricles relax | 2. | ventricles contract |
| 3. | atria relax | 4. | atria contract |
The portal systems seen in humans include:
I: Hepatic portal system
II: Renal portal system
III: Hypothalamic Hypophyseal portal system
| 1. | I and II only | 2. | I and III only |
| 3. | II and III only | 4. | I, II and III |
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
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 |
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 |
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
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 |
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 |
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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