Test 5 â Respiratory System - Next2Eden

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18) Central Chemoreceptors _____________. 18) ___________ A. are located in the aortic arch and carotid bodies B. are exquisitely sensitive to increases in H+ concentrations in the brain C. when activated cause increased respiration to “blow off” CO 2 D. B and C 19) Which of the following is true about lung cancer? 19) _____________ A. There is no connection between smoking and the likelihood of lung cancer. B. Lung cancer is the leading cause of cancer death in both men and women. C. There are no new therapies being developed for lung cancer. D. Tuberculosis is a form of lung cancer caused by smoking. 20) ____________ is an infectious lung disease caused by inhaling a mycobacterial pathogen. 20) _________ A. Asthma B. Tuberculosis C. <strong>Respiratory</strong> allergies D. Emphysema 21) In healthy lungs the greatest resistance to air flow occurs in ______________. 21) _____________ A. the main bronchi B. the medium-sized bronchi C. the respiratory bronchioles D. the alveolar sac 22) Even the most forceful exhalation leaves air in the lungs; this is called the ______ and is needed to _______. 22) __________ A. tidal volume; acquire adequate O2 B. vital capacity; remove adequate CO2 C. functional residual capacity; keep alveoli patent D. residual volume; keep alveoli patent 23) Tidal volume is the amount of air ___________. 23) ___________ A. forcibly expelled after normal expiration B. that moves into and then out of the lungs with each breath during normal quiet breathing C. remaining in the lungs after forced expiration D. inhaled after normal inspiration 4
24) Infant respiratory distress syndrome occurs because premature infants lack the ability to produce _______, which _______. 24) __________ A. mucus; traps bacteria B. cilia; clear mucus from the trachea C. surfactant; lowers surface tension D. alveoli; causes them to become hypoxic 25) For an average person in a resting state the minute ventilation is approximately _________. 25) ______ A. 500 mls of air B. 2000 mls of air C. 6 L of air D. 9 L of air 26) Hemoglobin molecules are fully saturated when bound to ____ molecule(s) of O2. A. 1 B. 2 C. 3 D. 4 27) Surface area in the nasal cavity is increased by the presence of ________. 27) ______ A. olfactory folds B. conchae C. microvilli D. soft palate 28) Red blood cells contain the enzyme _____, which catalyzes the formation of carbonic acid. 28 _________ A. carbonic anhydrase B. carbon dioxide acidase C. oxidase D. catalase 29) <strong>Respiratory</strong> control centers are located in the ________. 29) _________ A. midbrain and medulla B. upper spinal cord and medulla C. medulla and pons D. pons and midbrain 5
Page 1 and 2: Test 5 - Respiratory System Name___
Page 3: 12) The function of alveolar type I
Page 7 and 8: 36) With regards to the esophagus a
Page 9: 1) D 2) C 3) A 4) C 5) A 6) A 7) A

Test 5 â Respiratory System - Next2Eden

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Test 5 â Respiratory System - Next2Eden