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Physiology Practice Test: The Cardiovascular System - Blood
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Physiology Practice Test: The Cardiovascular System - Blood
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25 Questions

1. Most coagulation factors are synthesized by what organ?
2. Hemoglobin transports both oxygen and carbon dioxide.
3. A normal hematocrit is approximately what value?
4. What is the most abundant plasma protein?
5. Collagen activates factor X.
6. Hemophilia is a genetic clotting disorder usually characterized by the absence of what clotting factor?
7. Low dosages of aspirin inhibit clotting by blocking the formation of which of the following?
8. What is a hematocrit measuring?
9. Following centrifuging of blood, the middle layer contains platelets and leukocytes, and is called the buffy coat.
10. Platelets become sticky when exposed to which of the following?
11. High doses of aspirin can stimulate clotting by inhibiting the synthesis of ________.
12. Which of the following leukocytes has cytoplasmic granules?
13. Iron is transported in blood bound to what molecule?
14. Calcium is required for formation of a blood clot.
15. Iron can be stored in the liver and spleen bound to ferritin.
16. Which of the following is the first step of hemostasis?
17. The activation of thrombin by the extrinsic pathway is initiated by the ________.
18. A fibrin clot can occur in the absence of platelet aggregation.
19. What enzyme catalyzes the conversion of carbon dioxide and water to carbonic acid, and where is this enzyme located?
20. What is the most abundant class of white blood cells?
21. Erythrocytes are synthesized in what organ and under the control of what chemical?
22. Carbonic acid reversibly dissociates to form what two products, without the need of an enzyme?
23. What type of cell is the precursor for platelets?
24. Release of ADP by platelets is part of a positive feedback loop for platelet aggregation.
25. Platelets contain contractile proteins.

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