[HOME] [TEST 1 ANSWERS] [UNIT 1 HISTOLOGY]

BIOLOGY 2840 - HUMAN PHYSIOLOGY AND ANATOMY
PRACTICE TEST 1

Multiple Choice. Choose the best answer.

I. The hormone primarily responsible for setting the basal metabolic rate and for promoting the maturation of the brain is:

A. cortisol B. ACTH C. TSH D. thyroxine E. none of the preceding.

2. Many nonsteroid hormones act upon their target cells by causing:

A. cyclic AMP to become ATP
B. the inactivation of adenylate cyclase
C. cyclic AMP to become protein kineses
D. the activation of adenylate cyclase
E. both A and D apply.

3. Which of the following would result from a thyroidectomy (removal of the thyroid gland)?

A. decreased TSH secretion
B. increased T3 and thyroxine secretion
C. increased calcitonin secretion
D. increased TSH secretion
E. both B and C apply.

4. Steroid hormones are secreted by:

A. the adrenal cortex B. the gonads C. the thyroid D. both A and B E. both B and C.

5. The secretion of which hormone would be increased in a person with endemic goiter?

A. TSH. B. thyroxine C. triiodothyronine; D. all of the preceding apply

6. Which of the following hormone pairs is not produced by the same endocrine gland?

A. LH/FSH B. ACTH/ADH C. prolactin/GH D. CRH/PIH. E. all of the preceding are correctly paired.

7. Oxytocin:

A. allows milk secretion or "milk let-down"
B. is stored in the pars nervosa (posterior pituitary)
C. is produced by cells in the diencephalon (hypothalamus)
D. exerts important effects during childbirth
E. all of the above.

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

A. Hypothalamus B. hypophysis C. adrenal D. thyroid E. parathyroid.

8. Located in the sella turcica of the spheroid bone
9. Contains groups of cell bodies called nuclei
10. Located on the superior border of each kidney
11. Contains two structures: adeno- and neurohypophysis
12. Located on the posterior surface of the thyroid gland
13. Contains an outer cortical region and an inner medullary region
14. Located inferior to the larynx
15. Contains chromaffin cells which produce catecholamines
16. Produces releasing and inhibiting hormones
17. Produces calcitonin
18. Contains oxyphil and chief cells
19. It secretes some androgens
20. Contains chromophil and chromophobe cells.

Multiple Choice. Choose the best answer.

21. A tumor of the beta cells of the pancreatic islets would probably affect the body's ability to:

A. lower blood glucose level
B. lower blood calcium level
C. raise blood calcium level
D. raise blood glucose level
E. raise blood sodium level.

22. Removal of the adenohypophysis would affect all except:

A. adrenal cortex B. adrenal medulla C. ovaries D. mammary glands E. thyroid gland.

23. Which hormone stimulated the production of erythrocytes in myeloid tissues?

A. GH B. progesterone C. ICSH D. ADH E. none of the preceding.

MATCHING.

A. Cushing's syndrome B. cretinism C. myxedema D. Endemic goiter E. Addison's disease

24. Hyposecretion of thyroxine in adult
25. Hyposecretion of glucocorticoids and mineralocorticoids
26. Hypersecretion of glucocorticoids
27. Lack of iodine
28. Hyposecretion of thyroxine during childhood.

MULTIPLE CHOICE: Choose the best answer.

29. Which of the following is an agranular leukocyte?

A. eosinophil B. neutrophil C. basophil D. monocyte E. both B and D

30. Stem cells that give rise to all formed elements of blood are called:

A. megakaryoblasts B. erythroblasts C. reticulocytes D.hemocytoblasts E. megakaryocytes.

31. Hemostasis involves:

A. platelet plug formation
B. vasodilation
C. conversion of fibrin to fibrinogen
D. all of the preceding

32. Antibodies against both type-A and type-B antigens are found in the plasma of a person who is:

A. type A B. type B C. type AB D. type O.

33. Which is the most abundant plasma protein?

A. gamma globulin B. alpha globulin C. albumin D. beta globulin.

34. Which of the following blood proteins is not produced in the liver?

A. gamma globulin B. alpha globulin C. albumin D. beta globulin E. fibrinogen

35. The proteins that attack foreign proteins and pathogens are called:

A. alpha globulins B. albumins C. beta globulins D. fibrinogens E. none of the preceding.

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

A. neutrophils B. monocytes C. eosinophils D. platelets E. basophils

36. Produced from megakaryoblasts.
37. Phagocytose antigen-antibody complexes.
38. Able to kill certain larval parasitic worms.
39. Largest leukocyte.
40. A cell fragment.
41. Leave blood vessels and transform into macrophages.
42. Nonnucleated structures.
43. Least abundant leukocyte
44. Contain ADP and thromboplastin A2.
45. Granules have an affinity for acidic stains
46. Some of the contained granules contain heparin
47. Granules have an affinity for basic stains
48. Also called thrombocytes

MULTIPLE CHOICE: Choose the best answer.

49. Blood plasma pH is maintained at:

A. (7.0 to 7.3) B. (7.2 to 7.4) C. (7.35 to 7.45) D. (7.4 to 7.55) E. (5.0 to 5.5)

50. Which of the following is removed from plasma to form serum?

A. albumin B. water C. fibrinogen D. globulin E. vitamins

51. Which of the following substances can be added to a test tube to prevent blood from clotting

A. citrate B. EDTA C. heparin D. all of the preceding E. both A and C.

52. Which enzyme begins digesting the fibrin strands and eroding the foundation of the blood clot?

A. plasmin B. thrombin C. prothrombin D. thromboplastin E. none of the preceding.

MATCHING: Location of structures. (Items A through C may be used more than once.)

A. Atrium B. aorta C. ventricle

53. Chordae tendineae
54. Coronary arteries arise from this structure
55. Papillary muscles
56. Sinoatrial node
57. Purkinje fibers
58. Semilunar valves
59. Auricle.

TRUE OR FALSE: True=A False=B.

60. The AV node is commonly called the pacemaker.
61. A vessel that carries blood to the heart is always called a vein.
62. The heart lies anterior to the sternum and posterior to the vertebral column
63. Another name for the tricuspid valve is right atrioventricular valve.
64. Destruction of bone marrow by chemicals or X rays is known as aplastic anemia.
65. Myeloid tissues include the tonsils, thymus, and lymph nodes
66. Glycogenolysis refers to the conversion of glycogen to glucose
67. The aortic valvular auscultatory area is located over the left 2nd intercostal space
68. The average adult has about 8 liters of blood
69. Cardiac muscle fibers are striated, involuntary, multinucleated cells
71. The systemic circulation consists of blood vessels that transport blood to the lungs for gaseous exchange and then back to the heart.

MULTIPLE CHOICE: Choose the best answer.

72. Blood is carried to the walls of the right atrium and right ventricle by the artery.

A. marginal B. posterior interventricular C. circumflex D. anterior interventricular E. carotid.

73. The amount of oxygen is greatest in the blood found in the:

A. right atrium B. right ventricle C. coronary sinus D. Ieft atrium E. superior vena cave.

74. Which of the following is not part of the cardiac conducting system?

A. AV node B. AV sulcus C. SA node D. AV bundle E. Purkinje fibers.

75. Which of the following does not open into, or out of, the left atrium?

A. superior vena cave B. coronary sinus C. inferior vena cave D. all of the preceding.

76. By far the greatest bulk of the heart wall consists of:

A. epicardium B. myomysium C. endomysium D. myocardium E.epimysium.

77. The chordae tendineae and papillary muscles play an important roll in the normal function of the:

A. AV node B. AV sulcus C. AV bundle D. AV valves E. AV auricle

MATCHING.

A. T wave B. 2nd hears sound (dub) C. QRS wave D. P wave E. 1st heart sound (lub).

78. Atrial depolarization
79. Closure of pulmonary and aortic semilunar valves at the onset of ventricular diastole.
80. Ventricular depolarization
81. Closure of the AV valves at the onset of ventricular systole
82. Ventricular depolarization.

TRUE OR FALSE. True=A; False=B.

83. Isovolumetric relaxation is characterized by the closure of both AV and semilunar valves
84. The cardiac electrical conduction system is made up of specialized cardiac muscle fibers
85. Diabetes insipidus is associated with hypersecretion of ADH
86. The pulmonary arteries carry oxygenated blood from the lungs to the heart
87. The surface of the heart contains sulci
88. An ECG is also known as an EKG.

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

A. Left atrium B. left ventricle C. Both A and B D. Neither A nor B.

89. Walls are composed of three layers
90. Presence of chordae tendineae
91. Contains papillary muscles
92. Receives blood from the inferior vena cave
93. Walls contain cardiac muscle fibers
94. Purkinje fibers are present in the walls
95. Contains osseous tissue
96. Receives blood from the superior vena cave
97. Walls contain the thickest myocardium
98. Receives blood from the coronary sinus
99. Has a pouch-like extension called an auricle
100. Fill in the E circle!

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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