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Anatomy and Physiology Practice Test: The Cardiovascular System - Blood Vessels
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Anatomy and Physiology Practice Test: The Cardiovascular System - Blood Vessels
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25 Questions

1. A precapillary sphincter is a cuff of smooth muscle that regulates the flow of blood into the capillaries.
2. Which of the choices below reflects the balance (or imbalance) between the direction and amount of fluid that flows across the capillary walls?
3. An increase in blood viscosity will cause an increase in peripheral resistance.
4. The form of circulatory shock known as hypovolemic shock is ________.
5. The influence of blood vessel diameter on peripheral resistance is ________.
6. Which of the following is a type of circulatory shock?
7. Secondary hypertension can be caused by ________.
8. Which of the following do not influence arterial pulse rate?
9. Blood flow to the skin ________.
10. A patient with essential hypertension might have pressures of 200/120 mm Hg. This hypertensive state could result in all of the following changes except ________.
11. The azygos vein originates in the abdomen.
12. The hepatic portal vein ________.
13. Select the correct statement about blood flow.
14. Which tunic of an artery contains endothelium?
15. The carotid sinus reflex protects the blood supply to the brain, whereas the aortic reflex is more concerned with maintaining adequate blood pressure in the systemic circuit as a whole.
16. Select the correct statement about factors that influence blood pressure.
17. The baroreceptors in the carotid sinus and aortic arch are sensitive to which of the following?
18. A thrombus (blood clot) in the first branch of the arch of the aorta would affect the flow of blood to the ________.
19. The pulmonary circulation does not directly serve the metabolic needs of body tissues.
20. Which of the following signs of hypovolemic shock is a relatively late sign?
21. Vasodilation is a widening of the lumen due to smooth muscle contraction.
22. Brain blood flow autoregulation ________.
23. Which of the choices below does not involve tissue perfusion?
24. The first major branch of the femoral artery is the dorsalis pedis artery.
25. Aldosterone will ________.