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Respiratory System Chapter Exam

Exam Instructions:

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

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Question 1 1. What is the primary stimulant for ventilation in healthy persons?

Question 2 2. Consider the receptors that are part of the homeostatic system for regulation of ventilation. Which of the following are the central chemoreceptors sensitive to?

Question 3 3. Which of these structures is not a part of the respiratory system?

Question 4 4. What are some of the benefits of the conducting zone?

Question 5 5. Which of the following is true of surface tension in the respiratory system?

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Question 6 6. Which problem is caused by a lack of pulmonary surfactant?

Question 7 7. Tom's left lung is poorly ventilated, decreasing the partial pressure of oxygen to 80 mmHg. What would be the partial pressure of oxygen in the blood as it leaves Tom's left lung?

Question 8 8. Which of the following best explains why someone may experience shortness of breath on top of a mountain?

Question 9 9. What is the partial pressure of oxygen in the alveolar air and oxygen rich blood leaving the lungs?

Question 10 10. Consider a person breathing 100% oxygen. What would the partial pressure of oxygen be in the inspired air with an atmospheric pressure of 760 mmHg?

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Question 11 11. Pulmonary function tests assess an individual's _____, which is simply the movement of air into the lungs, known as _____ and the movement of air out of the lungs, known as _____.

Question 12 12. Which of the following correctly represents the formula for the maximum volume of air that our lungs can hold?

Question 13 13. Why does air move out of the lungs during expiration?

Question 14 14. Which gas law accounts for ventilation?

Question 15 15. Identify the molecule to which oxygen binds within red blood cells.

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Question 16 16. Why is the small amount of dissolved oxygen important for oxygen transport?

Question 17 17. Identify the molecule in human blood that carries oxygen.

Question 18 18. The increased affinity of hemoglobin for oxygen is caused by which of the following?

Question 19 19. If a person has an intrapleural pressure of x and an intrapulmonary pressure of y, then which of the following is definitely TRUE?

Question 20 20. Which of the following terms describes a collection of air within the pleural cavity that causes the lungs to collapse?

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Question 21 21. Why do we have millions of alveoli in each lung?

Question 22 22. The process that takes place in the lungs which involves the movement of oxygen and carbon dioxide is known as _____.

Question 23 23. Consider a person undergoing strenuous exercise. Which of the following would NOT be true for this person?

Question 24 24. What would be the symptoms of low levels of hemoglobin?

Question 25 25. Through the same reaction that forms bicarbonate, something else is produced. What is it and how is it utilized?

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Question 26 26. What happens with the bicarbonate when it is transported to the lungs so that carbon dioxide may be expired?

Question 27 27. What is the integration center for the homeostatic regulation of ventilation?

Question 28 28. What allows the trachea to expand and contract while we breathe?

Question 29 29. Why are lungs internalized in terrestrial animals?

Question 30 30. Which of the following is NOT a practical application of Henry's Law?

Respiratory System Chapter Exam Instructions

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

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