[HOME] [TEST 2 ANSWERS] [UNIT 2 HISTOLOGY]

BIOLOGY 2840 - HUMAN PHYSIOLOGY AND ANATOMY
PRACTICE TEST 2

Multiple Choice. Choose the best answer.

1. Endothelium is a:

A. simple columnar epithelium
B. stratified squamous epithelium
C. transitional epithelium
D. simple squamous epithelium
E. none of the preceding.

2. A thrombus (blood clot) in the first branch of the aortic arch would affect the flow of blood to

A. left side of the head and neck
B. myocardium of the heart
C. left shoulder and arm
D. superior surface of the diaphragm
E. right side of the head, neck, right shoulder and right arm.

3. Fenestrated capillaries are found in:

A. renal glomeruli (kidney)
B. intestinal villi
C. endocrine glands
D. all of the preceding
E. none of the preceding.

4. All arteries in the body carry oxygen-rich blood with the exception of:

A. the hepatic arteries
B. the pulmonary arteries
B. the pulmonary arteries
C. the renal arteries
D. the coronary arteries.

5. In the fetus, partially oxygenated blood is shunted from the through the foremen ovale.

A. left atrium to right atrium
B. right atrium to right ventricle
C. right ventricle to left ventricle
D. right atrium to left atrium
E. left atrium to left ventricle.

6. The "lub" or first heart sound, is produced by closing of:

A. the aortic semilunar valve
B. the pulmonary semilunar valve
C. the tricuspid valve
D. the bicuspid valve
E. both atrioventricular valves.

7. The QRS wave of an EKG (=ECG) is produced by:

A. depolarization of the atria
B. repolarization of the atria
C. depolarization of the ventricles
D. repolarization of the ventricles
E. answers A and C.

8. Cardiac output is:

A. (CR + SV) B. (SV-CR) C. (CR x SV) D. (SP x SV) E. (SP - DP)

MATCHING: (Items A through E may be used more than once.)

A. Great saphenous vein B. cephalic vein C. basilic vein D. brachial vein E. subclavian vein.

9. Drains the lateral side of the arm
10. Receives blood from the vertebral vein
11. Receives lymphatic fluid.
12. Deep vein in the brachium
13. Drains the medial aspect of the leg and thigh
14. Received blood from the external jugular vein
15. Drains the medial aspect of the arm
16. Receives blood from the medial cubital vein
17. Longest vein in the body
18. Joins the internal jugular vein to form the brachiocephalic vein
19. Receives blood from the ulnar and radial veins
20. Drains into the femoral vein
21. Receives blood from the axillary vein

Multiple Choice. Choose the best answer.

22. During the phase of isovolumetric contraction of the ventricles, the pressure in the ventricles is:

A. rising B. falling C.constant D.none of the preceding.

23. Which of the following fetal structures contains the most oxygen-rich blood?

A. left atrium B. umbilical arteries C. foramen ovale D. umbilical vein E. right atrium.

24. Stimulated sympathetic nerve endings in the musculature of the atria and ventricles will cause:

A. an increase in the rate of heart contraction
B. an increase in the time spent in systole when the cardiac rate is high
C. a decrease in the rate of heart contraction
D. answers B and C.

25.Stroke volume strength is regulated by:

A. EDV
B. ventricular contraction strength
C. mean arterial pressure
D. all of the preceding

26.Which of the following structures does not drain directly into the inferior vena cave?

A. hepatic veins B. renal veins C.inferior mesenteric vein D. common iliac veins E. right gonadal vein.

MATCHING. (Items A through D may be used more than once).

A. Arteries B. veins C. both A & B D. neither A nor B.

27. Generally have a more collapsed appearance in tissue sections
28. Classified by size
29. May contain circular skeletal muscle in the tunica media
30. Lumen is lined with a simple columnar epithelium
31. Always carry blood away from the heart
32. May carry blood with a high oxygen content
33. May possess fenestrations in their walls
34. Large vessels may contain a vase vasorum

Multiple Choice. Choose the best answer.

35. A positive chronotropic effect on the heart will cause:

A. an increase in strength of contractility
B. a decrease in cardiac rate
C. an increase in cardiac rate
D. a decrease in strength of contractility
E. none of the above are chronotropic effects.

36. Edema may result from:

A. low arterial pressure
B. leakage of blood proteins into the interstitial fluid
C. increased plasma protein concentration in the blood
D. all of the above.

37. The secretion of ADH occurs as neurons in the hypothalamus respond to an:

A. increase in blood pressure
B. increase in osmotic pressure
C. increase in hydrogen ion concentration
D. all of the above.

38. Which of the following is not directly associated with extrinsic regulation of blood flow?

A. ADH B.norepinephrine C. angiotensin II D. adenosine E. answers A and C.

39. The sounds of Korotkoff are produced by:

A. closing of the semilunar valves
B. closing of the AV valves
C. turbulent flow of blood through an artery
D. elastic recoil of the aorta
E. none of the preceding.

40. Lysosomes are common in:

A. tears B. sweat C. saliva D. answers A, B, and C E. phagocytes.

TRUE OR FALSE: True=A; False=B

41. The carotid body contains baroreceptors which monitor blood pressure.
42. Mean arterial pressure is systolic pressure plus one third pulse pressure.
43. A heart rate greater than 100 beats/minute is termed tachycardia
44. Arterioles in skeletal muscle receive cholinergic sympathetic fibers which release ACh.
45. The umbilical arteries in the fetus arise from the abdominal aorta.
46. Extrinsic regulation of blood flow refers to control by the ANS and the endocrine system.
47. Vasopressin has a vasodilator effect at high concentrations.
48. Active hyperemia occurs as a result of increased metabolism.
49. The vasomotor control center is located in the postcentral gyrus of the parietal lobe.
50. The walls of lymphatic capillaries are less permeable than are the walls of blood capillaries.

MATCHING: (Items A through E may be used more than once.)

A. celiac artery
B. inferior mesenteric artery
C. axillary artery
D. superior mesenteric artery
E. aorta.

51. Empties into the brachial artery.
52. Supplies the small intestine and the ascending colon.
53. Traverses or runs through the armpit region.
54. First major, unpaired branch off the abdominal aorta.
55. Largest artery in the body.
56. Second unpaired branch of the abdominal aorta.
57. Supplies the descending colon of the large intestine

Multiple Choice. Choose the best answer.

58. When blood flow and pressure are reduced in the renal artery, a group of cells called the -----secretes the enzyme----- into the blood.

A. juxtaglomerular apparatus / angiotensin I
B. osmoreceptors / renin
C. carotid sinus / angiotensinogen
D. juxtaglomerular apparatus / renin
E. suprarenal body / angiotensin II

59. Localized chemical conditions that promote vasodilation include:

A. decreased oxygen concentration
B. increased carbon dioxide concentration
C. decreased tissue pH
D. increased potassium concentration
E. all of the preceding

60. Lymph in the thoracic duct:

A. could have originated from the right leg
B. will enter the right subclavian vein
C. both of the preceding
D. none of the preceding

61. Which class of antibodies is abundant in body secretions?

A. IgM B. IgA C. IgG D. IgE E. IgD.

MATCHING: (Items A through D may be used more than once.)

A. Delayed hypersensitivity B. immediate hypersensitivity C. both A and B D. neither A nor B

62. B lymphocytes are involved.
63. IgE antibodies are involved.
64. Contact dermatitis, such as to poison ivy
65. Occurs within a period of 1 to 3 days
66. Fibroblasts involved
67. T lymphocytes are involved
68. Therapy - corticosteroids, such as cortisone
69. Allergic reactions, hay fever and asthma
70. Therapy - antihistamines and adrenergic drugs
71. An example of passive immunity
72. The antigens are called allergens.

Multiple Choice. Choose the best answer.

73. In response to endotoxins released by certain bacteria, leukocytes may release:

A. antibodies B. interferon C. antigens D. haptens E. endogenous pyrogens.

74. Lymphoid organs include:

A. spleen B. adrenal gland C. thyroid gland D. pancreas E. all of the preceding.

75. Mast cell secretion during an immediate hypersensitivity reaction is stimulated when antigens combine with antibodies.

A. IgG B. IgE C. IgM D. IgA E. none of the preceding.

76. Active immunity may be produced by:

A. contracting a disease
B. receiving a vaccine
C. receiving gamma globulin injection
D. both A and B
E. both B and C.

77. Which of the following structures is not associated with a lymph node?

A. germinal center B. hilus (=hilum) C. capsule D. canaliculi E. afferent lymphatic vessels

78. B- lymphocytes combat bacterial and viral infections by secreting antibodies into the blood and lymph, providing what type of immunity?

A. humoral B. nonspecific C. antigenic D. cell-mediated E. none of the preceding.

MATCH THE CELL TYPE WITH ITS SECRETION.

A. killer T cells B. mast ceils C. plasma cells D. macrophages

79. Antibodies
80. Perforins
81. Lysosomal enzymes
82. Histamine.

Multiple Choice: Select the best answer.

83. Antibody molecules are composed of ----- chains and ----- light chains

A. one /one B. one/two C. two / one D. two / two E. two / three.

84. A transplant between individuals belonging to different species is called a(n):

A. homograft B. xenograft C. isograft D. autograft

85. A new-boom infant who receives IgA from its mother's milk develops:

A. naturally acquired active immunity
B. artificially acquired active immunity
C. naturally acquired passive immunity
D. artificially acquired passive immunity.

86. Which of the following is not true of the spleen?

A. it consists of red and white pulp
B. afferent lymphatic vessels enter on the convex side
C. it destroys old, and fragile red blood cells
D. located in the upper left portion of the abdominal cavil

87. Antibodies belong to a group of proteins called:

A. albumins B. complement C. interferons D. alpha globulins E. none of the preceding.

88. Helper and suppressor T lymphocytes:

A. attack invaders directly
B. help regulate the specific immune system
C. activate thymosin
D. may specialize into memory and plasma cells, respective!

89. Examples of immediate hypersensitivity are:

A. conjunctivitus B. allergic rhinitis C. allergic asthma D. atopic dermatitis E. all of the preceding

TRUE OR FALSE: True=A False=B

90. The graft least likely to be successful is the isograft
91. Large lymphatic nodes located in the wall of the ileum are called Peyer's patches
92. The tonsillar ring consists of the lingual, palatine, and pharyngeal tonsils
93. The thymus gland gradually enlarges after puberty
94. Poison ivy and poison oak can cause contact dermatitis
95. Oncology is the study of allergies
96. In an autoimmune disease, the immune system fails to recognize and tolerate self-antigens
97. In the study of allergies, antibodies are often called allergens
98. Interferons are polypeptides
99. Macrophages in the connective tissues are derived from neutrophils
100. Fill in the "B" circle

[TOP] [HOME] [UNIT 2 HISTOLOGY]

This page was last updated in August, 1997.

Author: Sherri Wick, Coordinator and Instructor - Human Physiology and Anatomy Laboratories
University of Nebraska at Omaha
Allwine Hall 211E, 554-2343
swick@cwis.unomaha.edu