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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The second largest component of plasma is:
1. glucose | 2. water |
3. protein | 4. sodium |
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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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