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Cardiovascular System MCQs :-
1. Tissue cells rely on arterial diffusion to obtain nutrients and oxygen and to remove metabolic waste products.
- True
- False
2. The functions of the fibrous pericardium include:
- Returning blood to the atria
- Providing blood flow to the myocardium
- Anchoring the heart to surrounding structures
- Pumping blood into circulation
3. Circulatory blockage caused by the trapping of a freed thrombus in a pulmonary artery is called:
- Hemorrhoids
- Pulmonary embolism
- Thrombus
- Aneurysm
- Arteriosclerosis
4. Which component of blood plasma dissolves and transports organic and inorganic molecules, distributes blood cells, and transfers heat?
- Nutrients
- Organic wastes
- Electrolytes
- Proteins
- Water
5. Vasa vasorum are small arteries and veins that supply the smooth muscle fibers and fibroblasts of the tunica media and tunica extern.
- False
- True
6. A condition in which exertion or stress can produce severe chest pain, resulting from temporary circulatory insufficiency and ischemia when the heart’s workload increases is called:
- Carditis
- Angina pectoris
- Bradycardia
- Coronary thrombosis
- Cardiac arrhythmias
7. All chemical and gaseous exchange between the blood and interstitial fluid takes place across capillary walls.
- False
- True
8. The term for blood clot is:
- thrombus
- Embolism
- Plaque
- Polycythemia
- Hemophilia
9. During increased exercise:
- Cardiac output decreases
- Stroke volume decreases
- Vasoconstriction occurs at the active skeletal muscles
- Venous return increases
10. A condition with severe bleeding, typified by a low hematocrit and low hemoglobin, but normal RBCs is:
- Aplastic anemia
- Embolism
- Hemorrhagic anemia
- Anemia
- Hemophilia
11. Blood flow through the capillaries is regulated by the:
- Central channel
- Precapillary sphincter
- Vasa vasorum
- Arterial anastomosis
12. The fusion of the brachiocephalic veins forms the:
- Subclavian vein
- Superior vena cava
- Inferior vena cava
- Azygos vein
13. The moist pericardial lining prevents friction as the heart beats, and the collagen fibers binding the base of the heart to the media sternum limit movement of the major vessels during a contraction.
- True
- False
14. Why does the endothelial lining of a constricted artery appear to have pleats?
- The vasa vasorum contract irregularly
- Spaces between the endothelial cells allow the lining to sag
- The endothelial lining cannot contract, so it is folded in pleats
- The expansion regions of the artery are folded when the artery constricts
15. The circulatory supply of cardiac muscle tissue is more extensive than even that of red skeletal muscle tissue.
- True
- False
16. Sinusoids are found in the liver, bone marrow and adrenal glands.
- True
- False
17. A condition usually caused by an incompatibility between the material (Rh-) and fetal (Rh+) blood types is:
- Aplastic anemia
- Embolism
- Hemolytic disease of the newborn (HDN)
- Hemophilia
- Anemia
18. Changes in the endothelial lining and formation of plaques in the artery is known as:
- Arteriosclerosis
- Atherosclerosis
- Aneurysm
- Pulmonary embolism
- Thrombus
19. The vessels that carry oxygenated blood back to the heart and left atrium are:
- Superior and inferior venae cavae
- Pulomary arteries
- Pulmonary veins
- Capillaries
20. sagging, swollen veins distorted by gravity and the failure of venous valves are called:
- Hemorrhoids
- Th Pulmonary embolism
- Arteriosclerosis
- Varicose veins
- Aneurysm
21. Blood from the brain returns to the heart by way of the:
- Internal jugular vein
- Azygos vein
- Vertebral vein
- External jugular vein
22. Which component of blood formed elements participate in the clotting process?
- Red blood cells
- White blood cells
- Electrolytes
- Albumins
- Platelets
23. Which component of blood plasma is normal extracellular fluid ion composition essential for vital cellular activities?
- Electrolytes
- Organic wastes
- Water
- Proteins
- Nutrients
24. If there were damage to the sympathetic innervation to the heart, what would happen to the heart rate under the influence of the remaining autonomic nervous system stimulation?
- It would first increase and then decrease
- It would decrease
- It would increase
- It would not change
25. One of the functions of the hearts fibrous skeleton is to reinforce the valves and help prevent overexpansion of the heart.
- False
- True
26. The endocardium is the external surface of the heart.
- False
- True
27. A thickening and toughening of arterial walls is called:
- Hemorrhoids
- Pulmonary embolism
- Aneurysm
- Arteriosclerosis
- Thrombus
28. Sinusoids resemble fenestrated capillaries except they have smaller pores and a thicker basal lamina.
- False
- True
29. A condition resulting from pericardial irritation and inflammation, in which fluid collects in the pericardial sac and restricts cardiac output, is known as:
- Angina pectoris
- Cardiac tapenade
- Carditis
- Coronary thrombosis
- Cardiac arrhythmias
30. As we get older, our artery walls become more elastic and can thus more able to tolerate sudden increases in pressure.
- True
- False
31. Congestive heart failure (CHF) is a condition in which the heart cannot pump enough blood to meet the metabolic requirements of body tissues.
- True
- False
32. The medical specialty of cardiology focuses on medical, surgical, and therapeutic treatment of heart diseases.
- True
- False
33. A saccular aneurysm has a tear in the wall of the artery because of bleeding into the weakened wall, which splits the artery wall.
- True
- False
34. Drugs that reduce cholesterol levels in the blood and block production of an enzyme in the liver that produces cholesterol are called:
- ThrombolytAcs
- Anticoagulants
- Beta blockers
- Nitrates
- Statins
35. Irregular, random contraction of heart fibers that commonly occurs in the atria or ventricles of the heart are called:
- Angina pectoris
- Arteriosclerosis
- Aneurysm
- Fibrillation
- Dysrhythmia
36. A mass of undissolved matter such as blood clot, fatty plaque, or air bubble that travels through the bloodstream and becomes lodged in a blood vessel is called:
- Arteriosclerosis
- Bruit
- Ischemia
- Embolus
- Aneurysm
37. A monitoring device worn by a patient that records prolonged electrocardiograph readings on a portable recorder while the patient conducts normal daily activities is:
- Cardiac enzyme studies
- Electrocardiography
- Stress test
- Echocardiography
- Holter monitor
- Troponinl
- Cardiac catheterization
38. The surgical removal of the lining of an artery is called:
- Endovenous laser therapy
- Defibrillator
- Cardioversion
- Sclerotherapy
- Valvuloplasty
- Angioplasty
- Endarterectomy
39. Drugs that prevent the clotting or coagulation of blood are called:
- Beta blockers
- Thrombolytics
- Statins
- Nitrates
- Anticoagulants
40. An irregularity or loss of rhythm of the heartbeat is called:
- Angina pectoris
- Fibrillation
- Arrhythmia
- Aneurysm
- Arteriosclerosis