Q. No.The right ventricle of the heart pumps blood into the:
1.
pulmonary circulation
2.
systemic circulation
3.
coronary circulation
4.
portal circulation
What separates the atria from the ventricles so that the atrial impulse does not spill onto the ventricles?
| 1. | fibrous skeleton | 2. | AV bundle |
| 3. | visceral pericardium | 4. | Purkinje fibers |
If the atrioventricular node is damaged:
1. SA node would not develop action potential
2. atria will fail to contract
3. the impulse will not reach AV node
4. the impulse will not reach ventricles
| 1. | atrial systole | 2. | atrial diastole |
| 3. | ventricular systole | 4. | ventricular diastole |
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. |
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
Coagulation of blood can be prevented by removal of which of the following in the blood?
| 1. | transferrin | 2. | iron |
| 3. | antibodies | 4. | calcium |
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. |
Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R):
| Assertion (A): | The delay in the conduction of the impulse at the AV node is critical to the normal functioning of the human heart. |
| Reason (R): | It ensures that the atria have ejected their blood into the ventricles before the ventricles contract. |
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. |
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