Circulatory System Test Bank Answers Chapter.6

Chapter 6: Circulatory System

Multiple Choice

1. The blood vessel with the thickest walls is the:

A. capillary.

B. artery.

C. venule.

D. vein.

2. The longest vein in the body is the:

A. saphenous.

B. basilic.

C. superior vena cava.

D. cephalic.

3. The largest artery in the body is the:

A. aorta.

B. pulmonary.

C. carotid.

D. radial.

4. The artery of choice for measuring the pulse rate in an adult is the:

A. carotid.

B. radial.

C. brachial.

D. temporal.

5. The blood vessels that carry deoxygenated blood to the heart are:

A. arteries.

B. alveoli.

C. capillaries.

D. veins.

6. The large vein that returns blood from the head, neck, thorax, and upper limbs to the right atrium of the heart is the:

A. aorta.

B. inferior vena cava.

C. carotid artery.

D. superior vena cava.

7. The only artery in the body that carries deoxygenated blood is the:

A. aorta.

B. carotid.

C. coronary.

D. pulmonary.

8. A weakness in an arterial wall is called:

A. anemia.

B. thrombosis.

C. embolism.

D. aneurysm.

9. Hardening of the arteries is called:

A. necrosis.

B. ptosis.

C. dermatitis.

D. atherosclerosis.

10. Blood is supplied to the heart muscle by the:

A. cardiac arteries.

B. aorta.

C. right ventricle.

D. coronary arteries.

11. A sphygmomanometer is used to measure:

A. heart muscle damage.

B. pulse rate.

C. blood pressure.

D. heart rate.

12. Another name for a heart attack is:

A. phlebitis.

B. myocardial infarction.

C. pericarditis.

D. arteriosclerosis.

13. A heart murmur indicates a problem with the:

A. heart muscle.

B. superior vena cava.

C. coronary arteries.

D. heart valves.

14. The normal contraction phase of the cardiac cycle is initiated by the:

A. right ventricle.

B. bundle of His.

C. Purkinje fibers.

D. sinoatrial node.

15. Inflammation of the lining of the heart is called:

A. endocardium.

B. pericarditis.

C. myocardial infarction.

D. endocarditis.

16. All of the following are formed elements found in the blood except:

A. erythrocytes.

B. platelets.

C. macrophages.

D. leukocytes.

17. Red blood cells are produced in the:

A. thymus.

B. liver.

C. bone marrow.

D. spleen.

18. The two main types of lymphocytes are T cells and:

A. neutrophils.

B. B cells.

C. A cells.

D. monocytes.

19. The leukocyte with the highest concentration in normal blood is the:

A. monocyte.

B. eosinophil.

C. basophil.

D. neutrophil.

20. The primary role of the thrombocyte is to:

A. transport nutrients.

B. promote blood clotting.

C. phagocytize bacteria.

D. produce antibodies.

21. An increase in the number of white blood cells (WBCs) is:

A. anemia.

B. leukopenia.

C. leukocytosis.

D. polycythemia.

22. Functions of the blood include all of the following except:

A. transport oxygen.

B. regulate pulse rate.

C. deliver nutrients.

D. transport waste products.

23. Most laboratory tests are performed using:

A. arterial blood.

B. venous blood.

C. capillary blood.

D. oxygenated blood.

24. A person's blood type is determined by the presence of:

A. antibodies on red blood cells (RBCs).

B. circulating antigens.

C. antibodies on white blood cells (WBCs).

D. antigens on red blood cells (RBCs).

25. The plasma of a person who is blood type A will contain:

A. anti-B antibodies.

B. anti-A antibodies.

C. A antigens.

D. B antigens.

26. The function of hemoglobin in the red blood cell (RBC) is to:

A. maintain the RBC membrane.

B. transport oxygen to cells.

C. remove carbon dioxide from cells.

D. both B and C.

27. The prothrombin time is used to monitor:

A. oxygen therapy.

B. polycythemia.

C. Coumadin therapy.

D. rheumatic heart disease.

28. Fibrin degradation products are elevated in:

A. iron deficiency anemia.

B. hemophilia.

C. leukemia.

D. disseminated intravascular coagulation.

29. Pathways of the coagulation cascade are:

A. platelets and thrombin.

B. intrinsic and extrinsic.

C. fibrinogen and prothrombin.

D. heparin and Coumadin.

30. All of the following are tests to monitor the coagulation system except the:

A. reticulocyte count.

B. prothrombin time.

C. activated partial thromboplastin time.

D. D-dimer.

31. Coagulation requires all of the following except:

A. prothrombin.

B. thrombin.

C. heparin.

D. fibrin.

32. The fluid that comprises approximately 55% of the total blood volume is made up of:

A. hematocrit.

B. plasma.

C. tissue fluid.

D. serum.

33. When anemia is a possible diagnosis for a patient, the physician will most likely be interested in the results for which of the following cells analyzed in the complete blood count (CBC)?

A. Leukocytes.

B. Platelets.

C. Macrophages.

D. Erythrocytes.

34. Select the single answer below that correctly fills in the names of the coagulation tests described. The ______________________ test is performed to monitor patients on Coumadin therapy, and the _____________________ test is performed to monitor patients on Heparin therapy:

A. fibrin degradation products (FDP)/prothrombin time (PT)

B. prothrombin time (PT)/fibrinogen

C. prothrombin time (PT)/activated partial thromboplastin time (APTT or PTT)

D. bleeding time (BT)/platelet count (plt)

35. Which of the following is true of veins?

A. They are the smallest of blood vessels.

B. They are used for most venipunctures.

C. They propel oxygen-rich blood from the heart.

D. Gaseous exchange takes place in veins.

36. Which of the following blood test is associated with microbial infection?

A. Bilirubin.

B. Blood culture.

C. Cholesterol.

D. C-reactive protein.

37. Describe the cardiac cycle and explain the function of the sinoatrial (SA) node.

38. Explain the purpose of coronary circulation.

39. Left ventricle

40. Right atrium

41. Pulmonary vein

42. Right ventricle

43. Aorta

44. Pulmonary artery

45. Left atrium

KEY: Topic: Heart

DIF: Level 2

Learning objective: 6.5

KEY: Topic: Heart

DIF: Level 2

Learning objective: 6.5

KEY: Topic: Heart

DIF: Level 2

Learning objective: 6.5

46. Monocyte

47. Neutrophil

48. Eosinophil

49. Basophil

60. Lymphocyte

KEY: Topic: Blood

DIF: Level 2

Learning objective: 6.9

KEY: Topic: Blood

DIF: Level 2

Learning objective: 6.9