Q. No.Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R):
Assertion (A):
The left ventricle pumps the blood with greater force than the right ventricle.
Reason (R):
The left ventricle pumps more blood than the right ventricle during each contraction.
In the light of the above statements choose the correct answer from the options given below:
1.
Both (A) and (R) are True and (R) is the correct explanation of (A).
2.
Both (A) and (R) are True but (R) is not the correct explanation of (A).
3.
(A) is True but (R) is False.
4.
Both (A) and (R) are False.
In the light of the above statements choose the correct answer from the options given below:
A person with which of the following blood groups can receive blood from a donor of only his/her own blood group?
| 1. O | 2. A |
| 3. B | 4. AB |
Certain factors that can initiate coagulation of blood can be released by:
| I: | Platelets in the blood |
| II: | Tissues at the site of injury |
| III: | Liver |
| 1. | I and II only | 2. | I and III only |
| 3. | II and III only | 4. | I, II and III |
Interstitial fluid resembles plasma in the same distribution of:
1. Formed elements
2. Proteins
3. Minerals
4. Enzymes
All terrestrial vertebrates possess:
1. A muscle or elastic membrane to increase thoracic volume
2. A renal portal system
3. A skin that does allow diffusion of gases
4. At least a three chambered heart
What separates the right and the left atria in the human heart?
| 1. | A thin muscular wall | 2. | A thick muscular wall |
| 3. | A thin fibrous membrane | 4. | A thick fibrous membrane |
A tricuspid valve will prevent flow of blood from:
1. Right atrium to right ventricle
2. Right ventricle to right atrium
3. Left atrium to left ventricle
4. Left ventricle to left atrium
Purkinje fibers are:
| 1. | Intrinsic neural fibers in the ventricles |
| 2. | Muscle fibers that interconnect SA node and AV node |
| 3. | Muscle fibers that are distributed in the ventricular musculature |
| 4. | Neural fibers that spread the impulse throughout the ventricular muscle mass |
All the following statements regarding joint diastole phase of the cardiac cycle are correct except:
| 1. | All chambers are in a relaxed state |
| 2. | The AV valves may remain closed in the initial period |
| 3. | Ventricles get filled in the later part |
| 4. | Semilunar valves remain open |
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