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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. Release of ADP by platelets is part of a positive feedback loop for platelet aggregation.
2. Following centrifuging of blood, the middle layer contains platelets and leukocytes, and is called the buffy coat.
3. Pernicious anemia is associated with which of the following?
4. Low dosages of aspirin inhibit clotting by blocking the formation of which of the following?
5. Which of the following proteins is located inside erythrocytes?
6. What type of leukocyte secretes heparin?
7. What hematopoietic growth factor controls red blood cell synthesis, and what organ releases it?
8. Thrombin is activated by factor X.
9. Polycythemia is a decrease in the oxygen-carrying capacity of blood.
10. High doses of aspirin can stimulate clotting by inhibiting the synthesis of ________.
11. A normal hematocrit is approximately what value?
12. Coagulation factors continuously circulate in the blood in their inactive form.
13. What chemical dissolves blood clots?
14. Iron is transported in blood bound to what molecule?
15. A majority of the protein present within blood is synthesized within what organ?
16. The activation of thrombin by the extrinsic pathway is initiated by the ________.
17. Erythrocytes are synthesized in what organ and under the control of what chemical?
18. Formation of a platelet plug is initiated by ________ binding to ________.
19. Platelets become sticky when exposed to which of the following?
20. What converts fibrinogen to fibrin?
21. Most of the blood volume consists of erythrocytes.
22. Hemophilia is a genetic clotting disorder usually characterized by the absence of what clotting factor?
23. Jaundice is caused by an excess of iron in the blood.
24. Most coagulation factors are synthesized by what organ?
25. Carbonic anhydrase is an enzyme in erythrocytes essential for the transport of carbon dioxide as bicarbonate ions.

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