Chapter 10 Respiratory System Multiple Choice Questions and Answers with verified solutions

Chapter 10 Respiratory System Multiple Choice Questions and Answers with verified solutions A - ANS- 10. When the glottis becomes narrower, A. the pitch of sound goes up. B. the pitch of sound goes down. C. sound ceases completely. D. the volume increases. E. the volume decreases. A - ANS- 12. What separates the lungs from the thoracic cavity? A. pleura D. bone B. alveoli E. skeletal muscle C. cartilaginous rings A - ANS- 14. What diffuses from the air in the alveoli into the blood? A. oxygen D. nitrogen B. carbon dioxide E. methane C. water A - ANS- 15. Which of the following is not a part of inspiration? A. The pressure in the lungs increases. B. The rib cage moves up and out. C. The intercostal muscles pull the ribs outward. D. The diaphragm contracts and moves down. E. Air rushes into the lungs. A - ANS- 17. Which volume can add an additional 2,900 ml of air to the lungs? A. inspiratory reserve volume B. expiratory reserve volume C. residual volume D. vital capacity E. tidal volume A - ANS- 18. During respiration, what is the additional amount of air that can be exhaled from the lungs during an extra deep exhalation called? This volume is usually around 1,400 ml. A. expiratory reserve volume B. inspiratory reserve volume C. residual volume D. vital capacity E. tidal volume A - ANS- 2. The respiratory system is responsible for A. oxygen entering the body and carbon dioxide leaving the body. B. carbon dioxide entering the body and oxygen leaving the body. C. nitrogen leaving the blood stream. D. methane formation. E. the regulation of nutrient absorption. A - ANS- 20. Where is the respiratory control center located? A. in the brain D. in the aorta B. in the bronchi E. in the diaphragm C. in the lungs A - ANS- 22. When the pH of the blood becomes more acidic, the respiratory center A. increases the rate and increases the depth of breathing. B. increases the rate and decreases the depth of breathing. C. decreases the rate and increases the depth of breathing. D. decreases the rate and decreases the depth of breathing. E. stops breathing all together. A - ANS- 23. Carotid bodies and aortic bodies detect A. blood pH. B. oxygen blood levels. C. oxygen tissue levels. D. stretching of the lungs. E. the residual volume. A - ANS- 26. Which way does the reaction