Q. No.The location of the human heart is most accurately described as:
1.
mediastinum of the lungs.
2.
mediastinum of the pericardium.
3.
mediastinum, which is located in the thoracic cavity.
4.
thoracic cavity, which is located in the mediastinum.
The right ventricle of the heart pumps blood into the:
| 1. | pulmonary circulation | 2. | systemic circulation |
| 3. | coronary circulation | 4. | portal circulation |
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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 |
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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
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The semilunar valves close at the beginning of
| 1. | atrial systole | 2. | atrial diastole |
| 3. | ventricular systole | 4. | ventricular diastole |
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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. |
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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
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Coagulation of blood can be prevented by removal of which of the following in the blood?
| 1. | transferrin | 2. | iron |
| 3. | antibodies | 4. | calcium |
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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. |
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