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Spring'09.Final.B

Spring'09.Final.B - BIPN 102 B Mammalian Physiology II...

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BIPN 102 B, Mammalian Physiology II FINAL EXAM June 8, 2009 “Ignorance is a curable condition!” SELECT THE SINGLE BEST ANSWER 1. Consider the following steps of inspiration. Put them in order 1. air flows in 2. volume of the thorax increases 3. alveolar pressure decreases 4. alveolar volume increases 5. transpulmonary pressure increases a. 4, 5, 3, 2, 1 b. 2, 5, 4, 3, 1 c. 3, 5, 4, 2 ,1 d. 2, 5, 4, 3, 1 e. 2, 3, 5, 4, 1 2. Your roommate, a heavy smoker, coughs during lectures, concerts, movies, and parties. Otherwise there don’t seem to be any problems during dances, hikes, sports, etc. The most likely cause is: a. COPD (Chronic Obstructive Pulmonary Disease) b. Paralysis of the cilia in the lower respiratory tract c. Emphysema d. Pulmonary fibrosis e. Asthma For questions 3 &4 indicate which of the following muscles will contract. I. External Intercostals II. Internal Intercostals III. Diaphragm IV. Abdominal Muscles V. Sternocleidomastoids VI. Scalenes 3. Resting tidal expiration: 4. Forced inspiration: 5. Which of the following should NOT occur during any of the normal respiratory cycles:
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BIPN 102 B, Mammalian Physiology II FINAL EXAM June 8, 2009 6. It’s your birthday and you are about to blow out the candles on your cake. Which of the following pairs of values (in mm Hg) is correct for the air in your trachea just before you blow out the candles? a. P O 2 = 100, P CO 2 = 40 b. P O 2 = 160, P CO 2 = 0 c. P O 2 = 150, P CO 2 = 0 d. P O 2 = 150, P CO 2 = 40 e. P O 2 = 40, P CO 2 = 46 7. A major function of lung surfactant is to increase the: 8. What is the P O 2 of inspired air in a person at an altitude where Patm = 400 mmHg, the diet is mostly carbohydrates, and the P CO 2 is equal to that at sea level? 9. What is the P O 2 in the alveoli of the above person? 10. If the alveolar ventilation is 4200 ml/min of an individual that has a ventilation rate of 20 breaths/min, and normal dead space, what must the tidal volume be? a. 210 ml b. 360 ml c. 500 ml d. 710 ml e. more information is needed
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