front 1 The structural framework of lymphoid tissue is offered by: | back 1 reticular connective tissue. |
front 2 Large clusters of lymph nodes occur in all of the following locations except the ________. | back 2 lower extremities |
front 3 What is the role of interferon in defense against disease? | back 3 protects cells that have not yet been infected by viruses |
front 4 Which nonspecific defense cells specialize in attacking cancer cells and virus-infected cells? | back 4 Natural killer cells |
front 5 Which statement is true of the thoracic duct? | back 5 It drains the lymph from the entire left side of the body and the right abdomen and leg. |
front 6 Which of the following are the principle lymphoid organs in the body? | back 6 Lymph nodes |
front 7 This tissue lines the trachea. | back 7 Pseudostratified columnar epithelium |
front 8 All of the following are examples of autoimmune disorders, except: | back 8 sickle-cell anemia. |
front 9 Which of the following cells is the most critical cell in immunity? | back 9 helper T cell |
front 10 Within the lungs carbon dioxide and oxygen diffuse between the air in the alveoli and the blood. | back 10 True |
front 11 Which of the following controls the respiratory rate? | back 11 Medulla |
front 12 Lymph leaves a lymph node via ________. | back 12 efferent lymphatic vessels |
front 13 Lymphocytes that develop immunocompetence in the thymus are: | back 13 T lymphocytes. |
front 14 Active artificially acquired immunity is a result of: | back 14 vaccination. |
front 15 The tonsils located at the base of the tongue are the ________. | back 15 lingual tonsils |
front 16 This type of disease results from the inability of the immune system to distinguish self- from nonself-antigens. | back 16 Autoimmune disease |
front 17 This structure, attached to the cecum, is in an ideal location to destroy bacteria before it migrates into the large intestine. | back 17 Appendix |
front 18 Cytotoxic T cells ________. | back 18 are the only T cells that can directly attack and kill other cells |
front 19 Which of the following conditions would NOT decrease the total respiratory compliance? | back 19 Increase in lung compliance |
front 20 Lymphoid tissue that appears as a swelling of the mucosa in the oral cavity is called a(n) ________.
| back 20 tonsil |
front 21 Which of the following is NOT a function of the conducting zone? | back 21 Gas exchange |
front 22 Where is the site of erythrocyte production in the fetus? | back 22 Spleen |
front 23 Innate immune system defenses include ________. | back 23 phagocytosis |
front 24 Which of the following is not a type of T cell? | back 24 antigenic |
front 25 Which atmospheric gas is the most soluble in liquid? | back 25 Carbon dioxide |
front 26 Internal and external respiration occur in exactly the same regions of the body. | back 26 False |
front 27 Aggregates of lymphoid nodules located in the wall of the ileum are: | back 27 Peyer's patches. |
front 28 Antibodies that act against a particular foreign substance are released by ________. | back 28 plasma cells |
front 29 Lymphocytes that develop immunocompetence in the thymus are: | back 29 T lymphocytes. |
front 30 Most of the carbon dioxide transported by the blood is: | back 30 converted to bicarbonate ions and transported in plasma. |
front 31 Fever ________. | back 31 production is regulated by chemicals that reset the body's thermostat to a higher settin |
front 32 The transpulmonary pressure is the difference between the ____________ and the __________ pressure. | back 32 intrapulmonary; intrapleural |
front 33 The movement of air into and out of the lungs is called: | back 33 pulmonary ventilation |
front 34 Which respiratory structure has the smallest diameter? | back 34 Bronchiole |
front 35 Which statement below is characteristic of a secondary humoral response? | back 35 It occurs much more rapidly than a primary response. |
front 36 The rate of blood flow to a tissue would increase during times of high metabolic activity. | back 36 True |
front 37 The immune cell that allows for subsequent recognition of an antigen, resulting in a secondary response, is called a(n): | back 37 memory cell. |
front 38 Air moves into the lungs because: | back 38 the gas pressure in the lungs becomes lower than the outside pressure as the diaphragm contracts. |
front 39 A major function of the lymphatic system is: | back 39 return of tissue fluid to the cardiovascular system. |
front 40 Which of the following is a nonspecific barrier defense? | back 40 Mucous membranes |
front 41 All of the following would be caused by breathing excessively high concentrations of oxygen for a long period of time, except: | back 41 increased mental function. |
front 42 In addition to its lymphoid function, this organ holds a reservoir of platelets. | back 42 Spleen |
front 43 Small molecules that bind with self-proteins to produce antigenic substances are called ________. | back 43 haptens |
front 44 A "foreign" molecule which can invoke the immune response is called a(n): | back 44 antigen. |
front 45 Antibody functions include all of the following except ________. | back 45 cross-linking cell-bound antigens on red blood cells when blood types are properly matched |
front 46 The elastic cartilage that shields the opening to the larynx during swallowing is the: | back 46 epiglottis. |
front 47 Which of the following is not a function of the inflammatory response? | back 47 replaces injured tissues with connective tissue |
front 48 Which situation would interfere with external respiration? | back 48 All answers are correct |
front 49 Cells require oxygen for cellular respiration. | back 49 True |
front 50 Which of the following is NOT an innate defense mechanism of the body? | back 50 B lymphocytes |
front 51 B lymphocytes develop immunocompetence in the ________. | back 51 bone marrow |
front 52 The thymus is most active during ________. | back 52 childhood |
front 53 What lymphatic structures trap bacteria in the posterior oral mucosa? | back 53 Palatine tonsils |
front 54 Helper T cells ________. | back 54 function in the adaptive immune system activation |
front 55 Antibody functions include all of the following except ________. | back 55 cross-linking cell-bound antigens on red blood cells when blood types are properly matched |