1. _______ are clusters of lymphatic nodules deep to the epithelial lining of the small intestine.
D. Peyer patches
2. Venoconstriction ________ the amount of blood within the venous system, which _______the volume in the arterial and capillary systems.
C. reduces; increases
3. The left ventricle pumps blood to the
B. aorta.
4. The ______ delivers blood to the myocardium.
E. coronary arteries
5. The lymphatic system is composed of all of the following, except
D. the venae cavae.
6. The term lymphadenopathy refers to
C. a chronic or excessive enlargement of lymph nodes.
7. Venoconstriction reduces the diameter of which vessel?
D. vein
8. The bicuspid or mitral valve is located
E. between the left atrium and left ventricle.
9. Which part of the vascular system functions as a blood reservoir and contains over 60% of the bodys blood?
B. veins
10. Blood returning to the heart from the pulmonary circuit first enters the
B. left atrium.
11. Arrange the structures in the following list in the order that blood will encounter as it flows from the output side to the input side of the cardiovascular flow circuit.
1. venules
2. arterioles
3. capillaries
4. elastic arteries
5. medium veins
6. large veins
7. muscular arteries
C. 4, 7, 2, 3, 1, 5, 6
12. Which of the following descriptions matches the term near the left fifth intercostals space?
D. apex of heart
13. Arteriosclerosis can lead to
A. All of the answers are correct.
14. Artery is to _____as vein is to _____.
A. efferent; afferent
15. The right atrium receives blood from the
B. systemic circuit.
16. Immunity that is genetically determined and present at birth is called _______ immunity.
D. innate
17. Fear can result in
B. increased stimulation of the cardioaccelerator center by higher brain centers.
18. The cells directly responsible for cellular immunity are the _____ cells.
B. cytotoxic T
19. Which of the following is the most likely to result from an aneurysm in a brain artery?
E. stroke
20. _______ are large lymphatic nodules that are located in the wall of the pharynx.
A. tonsils
21. Examples of physical barriers against pathogens include
E. All of the answers are correct.
22. The large vessels that return blood to the heart are called
E. veins.
23. The visceral pericardium is the same as the
B. epicardium.
24. The lymphatic system does all of the following, except that it
D. transports gases to and away from lymph nodes.
25. The cells responsible for humoral immunity are the _____ cells.
C. B
26. Lymphocytes may be found in which of the following tissue or organs?
E. all of the answers are correct.
27. The structure that permits blood flow from the right atrium to the left atrium in the fetal circulation is the
D. foramen ovale.
28. Lymphocytes that destroy foreign cells or virus-infected cells are ____ cells.
B. cytotoxic T
29. Which structure do RBCs move through single file?
E. capillary
30. What vessels hold the larger percentage of the blood supply?
B. vein
31. After blood leaves the capillaries, it enters the
D. venules.
32. Clinically, the term blood pressure usually refers to
A. arterial pressure.
33. In general, lymphocytes
B. spend most of their time in lymphatic tissue.
34. In what vessel is blood pressure the highest?
B. artery
35. The bodys innate defenses include all of the following, except
C. antibodies.
36. The right pulmonary veins carry ______ blood to the _____
C. oxygenated; left atrium
37. Which of the following affects blood flow through the body?
D. All of the answers are correct.
38. Blood flowing into the heart from the venae cavae flows next through the ____valve.
E. tricuspid
39. The adult heart is roughly the size of
B. a mans clenched fist.
40. The atrioventricular valves permit blood flow
A. in one direction only.
41. T is to ______as B is to ______
E. thymus-dependent; bone marrow derived
42. The primary function of the lymphatic system is
B. defending the body against both environmental hazards and internal threats.
43. The right ventricle pumps blood to the
A. right and left lungs.
44. Coronary veins empty into the
D. right atrium.
45. Lymph nodes do all of the following, except that they
A. Remove excess nutrients from the lymph.
46. Blood returning to the heart from the systemic circuit first enters the
E. right atrium
47. Compared to arteries, veins
D. Have thinner walls.
48. Blood pressure is lowest in the
B. veins.
49. Excess fluid in the ____ causes cardiac tamponade.
D. pericardial cavity
50. Factors that increase the risk of atheroscleroisis include which of the following?
D. All of the answers are correct
51. Blood pressure is determined by
A. estimating the pressure needed to close off an artery with an external pressure cuff.
52. Inflammation produces localized
E. All of the answers are correct.
53. Venous valves are responsible for
A. channeling blood toward the heart.
54. Blood leaves the right ventricle by passing through the
C. pulmonary valve.
55. Lymphocytes provide an adaptive or specific defense known as the
B. immune response.
56. Most of the lymph returns to the venous circulation by way of the
E. thoracic duct
57. Newborns gain their immunity initially from
A. antibodies passed across the placenta from the mother.
