Name: Date: Mark: / 45 Chapter 11: Respiratory System Review Assignment Multiple Choice = 45 Marks Identify the choice that best completes the statement or answers the question. 1. Which of the following processes occur in the nasal cavity? I II III filtering of air warming of air oxygen enters the blood a. I and II only b. I and III only c. II and III only d. I, II and III 2. Which of the following processes occurs when the rib muscles contract? a. exhalation ends b. inhalation ends c. inhalation begins d. exhalation begins 3. Air exits the lungs because a. of negative pressure. b. the diaphragm relaxes. c. the diaphragm contracts. d. the intercostal muscles contract. 4. The pharynx is a. the opening to the trachea. b. the air tube that connects the mouth to the lungs. c. the flap that covers the windpipe when eating or drinking. d. the area in the throat that is a passageway for both air and food. 5. The trachea is a. the opening to the larynx. b. the air tube that connects the mouth to the lungs. c. the flap that covers the windpipe when eating or drinking. d. the area in the throat that is a passageway for both air and food. 6. The epiglottis is a. the opening to the larynx. b. the air tube that connects the mouth to the lungs. c. the flap that covers the windpipe when eating or drinking. d. the area in the throat that is a passageway for both air and food. 1
Name: 7. The pleural membrane is a. where gas exchange occurs. b. what seals the thoracic cavity. c. what contains the vocal chords. d. where the trachea branches to the lungs. 8. The bronchioles are a. where gas exchange occurs. b. tubes branching from the bronchi. c. tubes branching from the trachea. d. the structure that contains the vocal chords. 9. The larynx is a. a sac at the end of a bronchiole. b. a tube branching from the trachea. c. the thin membrane covering lungs. d. the structure that contains the vocal chords. 10. Use the following information to answer the next question. Row Intercostal Muscles Diaphragm A. contract moves up B. relax moves down C. relax moves up D. contract moves down Which row of the table represents the condition of the intercostal muscles and diaphragm during exhalation? a. A c. C b. B d. D 11. Use the following information to answer the next question. Row Intercostal Muscles Diaphragm A. contract moves up B. relax moves down C. relax moves up D. contract moves down Which row represents the condition of the intercostal muscles and diaphragm during inhalation? a. A c. C b. B d. D 2
Name: 12. During external respiration, the blood in capillaries has a i concentration of carbon dioxide, therefore the carbon dioxide ii the capillary. Row i ii A. lower exits B. lower enters C. higher exits D. higher enters a. A c. C b. B d. D 13. During internal respiration, oxygen diffuses from the i into the ii. Row i ii A. air oxygen-rich tissues B. air oxygen-poor tissues C. blood oxygen-rich tissues D. blood oxygen-poor tissues a. A c. C b. B d. D 14. Which of the following structures is lined with cilia? a. alveoli b. trachea c. bronchioles d. pleural membranes 15. In which of the following structures is the level of carbon dioxide in the blood detected? a. alveoli b. bronchioles c. medulla oblongata d. intercostal muscles 16. Which of the following substances will trigger inhalation when it reaches a high enough level? a. oxygen b. hemoglobin c. oxyhemoglobin d. carbaminohemoglobin 17. What product forms when Hb combines with O 2? a. bicarbonate b. oxyhemoglobin c. reduced hemoglobin d. carbaminohemoglobin 3
Name: 18. Which of the following is a characteristic of an alveolus? a. lined with cilia b. rings of cartilage c. coated in lipoprotein d. connected to the bronchi 19. Use the diagram above to answer the next question. Structure B represents a. the trachea. b. an alveolus. c. the bronchus. d. the bronchiole. 20. Which of the following is a description of internal respiration? a. oxygen enters an alveolus b. oxygen diffuse into the blood c. carbon dioxide enters an alveolus d. carbon dioxide diffuses into the blood 21. Which of the following structures are responsible for regulating breathing? I II III aortic bodies carotid bodies medulla oblongata a. III only b. I and II only c. I and III only d. I, II, and III 4
Name: 22. Use the diagram above to answer the next question. Which numbered region is responsible for producing sound while speaking or singing? a. 2 b. 3 c. 6 d. 8 23. Use the diagram above to answer the next question. Which numbered structure is responsible for ensuring that the pressure in the thoracic cavity is less than the surrounding environment? a. 4 b. 5 24. Use the diagram above to answer the next question. Which numbered region is responsible for producing mucus to trap debris? a. 1 b. 2 c. 3 d. 4 5
Name: 25. Use the diagram above to answer the next question. Which numbered region is lined with cilia? a. 1 b. 8 26. Use the diagram above to answer the next question. Which numbered region has a layer of smooth muscles? a. 5 b. 8 27. Use the diagram above to answer the next question. Which numbered structure moves in response to nervous stimulation by the medulla oblongata? a. 5 b. 6 28. Use the diagram above to answer the next question. Which numbered structure is highly vascularized? a. 4 b. 6 c. 8 29. Use the diagram above to answer the next question. Which of the numbered structures is coated in lipoprotein to prevent collapse? a. 7 b. 8 30. Use the diagram above to answer the next question Which numbered structure is specially adapted to increase surface area? a. 7 b. 8 31. Which of the following events occurs first during exhalation? a. Stretch receptors signal the medulla oblongata. b. Medulla oblongata senses high level of carbon dioxide. c. Diaphragm contracts and flattens to increase thoracic volume. d. Diaphragm relaxes and becomes dome-like to reduce thoracic volume. 6
Name: 32. Use the following chart to answer the next question. Entering Capillary Bed in the Arm Leaving Capillary Bed in the Arm A low oxyhemoglobin low bicarbonate B low oxyhemoglobin high bicarbonate C high oxyhemoglobin low bicarbonate D high oxyhemoglobin high bicarbonate Which row of the chart correctly compares the relative concentration of oxyhemoglobin and bicarbonate in the blood entering and leaving a capillary bed in the arm? a. A b. B c. C d. D 33. What conditions exist in the blood at the site where oxygen bind to hemoglobin? a. lower ph and lower carbon dioxide level b. higher ph and higher carbon dioxide level c. lower temperature and higher carbon dioxide level d. higher temperature and lower carbon dioxide level 34. Use the diagram above to answer the next question. Which of the following reactions occurs in the capillaries surrounding this structure? a. Hb + O 2 HbO 2 b. Hb + H + HHb c. CO 2 + H 2 O H 2 CO 3 d. H 2 CO 3 H + + HCO 3 7
Name: 35. Use the diagram above to answer the next question Which of the following substances is at its highest concentration in the blood leaving this structure? a. CO 2 b. HHb c. HbO 2 d. HbCO 2 36. Which of the following responses will occur with increased stimulation from the medulla oblongata? a. Levels of HbCO 2 and HbO 2 will decrease. b. The diaphragm will contract at a lower rate. c. The volume of air exiting the lungs will decrease. d. Intercostal muscles will contract more frequently. 37. Which of the following vessels will have the highest concentration of HHb? a. aorta b. carotid artery c. umbilical artery d. pulmonary vein 38. Which of the following processes must occur before carbaminohemoglobin can form? a. diffusion of O 2 into the blood b. diffusion of CO 2 into the blood c. diffusion of O 2 out of the blood d. diffusion of CO 2 out of the blood 39. Which of the following processes occurs as the ph of blood decreases? a. hemoglobin binds to oxygen b. carbonic anhydrase is formed c. carbaminohemoglobin releases carbon dioxide d. carbon dioxide combine with water to form carbonic acid 40. Which of the following structures contract during inspiration? a. lungs and diaphragm b. intercostals and diaphragm c. intercostals and stretch receptors d. pleural membranes and diaphragm 41. Which of the following conditions could cause the diaphragm to contract at a higher rate? a. decreased concentration of HHb b. increased concentration of oxyhemoglobin c. decreased concentration of reduced hemoglobin d. increased concentration of carbaminohemoglobin 8
Name: 42. Which of the following conditions will result if you hyperventilate by intentionally breathing rapidly? a. Blood ph will increase. b. Levels of bicarbonate ion will increase. c. Levels of oxyhemoglobin will decrease. d. Concentration of reduced hemoglobin will increase. 43. Use the diagram above to answer the next question. At which of the following locations is the concentration of HbO 2 the greatest? a. A b. B c. C d. D 44. Use the diagram above to answer the next question. At which of the following locations is the concentration of HbCO 2 the greatest? a. A b. B c. C d. D 9
Name: 45. Use the diagram above to answer the next question. Between which pair of locations does the process of external respiration occur? a. A and B b. A and C c. B and C d. B and D 10