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 integration center for the homeostatic regulation of ventilation?

Question 2 2. What is the primary stimulant for ventilation in healthy persons?

Question 3 3. After carbon dioxide diffuses out of the tissues and into the blood, in what part of the blood do the conversions take place that produce bicarbonate and carbaminohemoglobin?

Question 4 4. Even though carbon dioxide is a cellular waste product, it is converted through a reaction with water to create bicarbonate. The bicarbonate then performs an important role after it diffuses back into the plasma. What is it?

Question 5 5. If a person has an intrapleural pressure of x and an intrapulmonary pressure of y, then which of the following is definitely TRUE?

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Question 6 6. What is the space between the outside of the lungs and the inside of the chest wall called?

Question 7 7. What are some of the benefits of the conducting zone?

Question 8 8. Which of these structures is not a part of the respiratory system?

Question 9 9. Which of the following is NOT true concerning ventilation?

Question 10 10. Contraction of which muscle results in inspiration?

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Question 11 11. Why do we need oxygen?

Question 12 12. What would be the symptoms of low levels of hemoglobin?

Question 13 13. 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?

Question 14 14. What is the partial pressure of oxygen in the alveolar air and oxygen rich blood leaving the lungs?

Question 15 15. Identify the primary means by which oxygen is transported in the body.

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Question 16 16. How many oxygen molecules can each molecule of hemoglobin bind?

Question 17 17. Which of the following would most readily bind oxygen?

Question 18 18. Which of the following terms is used to express how oxygen binds hemoglobin as it passes through the lungs?

Question 19 19. Which of the following best explains why someone may experience shortness of breath on top of a mountain?

Question 20 20. 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?

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Question 21 21. Why are lungs internalized in terrestrial animals?

Question 22 22. Which problem is caused by a lack of pulmonary surfactant?

Question 23 23. After Shelley takes a deep breath, the greatest amount of air she can expel from her lungs is known as _____. However, Shelley cannot completely empty her lungs, so _____ is the amount of air that remains in her lungs.

Question 24 24. 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 25 25. Which of the following best describes how gas exchange occurs?

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Question 26 26. Why does the process of gas exchange need to be efficient?

Question 27 27. 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 28 28. Through the same reaction that forms bicarbonate, something else is produced. What is it and how is it utilized?

Question 29 29. Which of the following terms describes a collection of air within the pleural cavity that causes the lungs to collapse?

Question 30 30. Which of the following is part of the lower respiratory system?

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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