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Q. No.A trained athlete can achieve a maximal cardiac output of:
1.
5 – 10 L/min
2.
15 – 20 L/min
3.
25 – 30 L/min
4.
55 – 60 L/min
Subtopic: Human Heart: Cardiac Cycle |
Level 3: 35%-60%
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Subtopic: Human Heart: Double Circulation |
Level 3: 35%-60%
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Normal activities of the human heart are regulated:
| 1. | Intrinsically |
| 2. | By the autonomic nervous system |
| 3. | By the somatic neural system |
| 4. | By the adrenal medullary hormones |
Subtopic: Regulation of Cardiac Activity |
64%
Level 2: 60%+
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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 |
Subtopic: Human Heart: Cardiac Cycle |
70%
Level 2: 60%+
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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 |
Subtopic: Human Heart: Gross Anatomy |
71%
Level 2: 60%+
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Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R):
| Assertion (A): | If the SA node does not function, or the impulse generated in the SA node is blocked before it travels down the electrical conduction system, the heart would stop. |
| Reason (R): | No other part of the nodal tissue of the heart is capable of generating the impulse. |
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. |
Subtopic: Human Heart: Cardiac Cycle |
60%
Level 2: 60%+
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What is true for the blood Type O?
| 1. | It is universal donor because it has neither anti-A antibodies nor anti-B antibodies circulating in the plasma. |
| 2. | It is universal donor because it has neither antigen A nor antigen B on its RBCs. |
| 3. | It is universal recipient because it has neither anti-A antibodies nor anti-B antibodies circulating in the plasma. |
| 4. | It is universal recipient because it has neither antigen A nor antigen B on its RBCs. |
Subtopic: Blood: Blood Group (A,B,O) |
78%
Level 2: 60%+
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An Rh + woman is pregnant with an Rh- fetus. The consequences can be:
| 1. | There is usually no risk during the first pregnancy, but it can harm the fetus during a subsequent pregnancy if the mother is not treated. |
| 2. | It always poses a serious risk to the fetus, even in the first pregnancy. |
| 3. | Only in rare cases is there a risk to the fetus during the first pregnancy. |
| 4. | There is no risk to the fetus when a woman who is Rh+ carries an Rh- fetus. |
Subtopic: Blood: Blood Group |
61%
Level 2: 60%+
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A person has a complete blood count done. Which of the following would not be normal?
| 1. | total RBC count - 5.0 million /µL |
| 2. | total WBC count – 1500 /µL |
| 3. | total platelet count - 225,000 /µL |
| 4. | hemoglobin – 14.5 g / 100 ml |
Subtopic: Blood: White Blood Cells |
74%
Level 2: 60%+
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Which of these statements about the ABO blood group is NOT true?
| 1. | A person with type O blood can donate blood to individuals with type A, B, AB, or O blood types. |
| 2. | Transfusions should be made considering the plasma of the donor and the erythrocytes of the patient (recipient). |
| 3. | A person with type A blood should not receive a transfusion from someone with type AB blood. |
| 4. | A person with type O blood has both the A and B antigens. |
Subtopic: Blood: Blood Group (A,B,O) |
79%
Level 2: 60%+
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