BIOD 151 FINAL EXAM STUDY GUIDE QUESTIONS WITH CORRECT VERIFIED ANSWERS | 100% PASS (A+ CERTIFIED)

BIOD 151 FINAL EXAM STUDY GUIDE QUESTIONS WITH CORRECT VERIFIED ANSWERS | 100% PASS (A+ CERTIFIED) 1. How many lobes does the right lung have Correct Answer Three 2. Air (and not food) pass in which of the following areas: A. Esophagus B. Nasopharynx C. Oropharynx D. Both A. and C Correct Answer Nasopharynx 3. Air and food pass in which one of the following areas Correct Answer Oropharynx 4. Ring of cartilage line much of the respiratory tract. In which of the following would cartilage not be found? Trachea Larynx Bronchi Alveoli: Alveoli 5. Be able to label the following on a diagram: a. Nasal Cavity b. oral cavity c. soft pallet d. epiglottis e. glottis f. trachea g. esophagus h. tongue 6. What happens to the epiglottis during swallowing Correct Answer During swallowing the epiglottis moves inferiorly to cover the trachea. This prevents food and liquid from entering the lungs (aspiration). 7. A premature baby is having difficulty producing surfactant. Explain problems that may occur and why Correct Answer Surfactant covers the lumina and helps keep the alveoli from sticking together during exhalation. Breathing difficulty will occur due to this because alveoli are not functioning properly 8. Explain the difference between type I and type II alveoli cells Correct Answer Type I alveolar cells: make up about 95% of alveolar epithelium and form a very thin, simple squamous epithelium of the alveoli in junction with capillaries Type II alveolar cells: Make up 5%, dispersed throughout the type I cells, produce and secrete pulmonary surfactant on alveolar surface so they can stay open, can divide to replace damaged Type I cells. 9. True/ False: Negative pressure is used to move air into the lungs Correct Answer True: Inhale - causes air to rush inside the lungs because it wants to move from area of high pressure to an area of low pressure Exhale - causes air to rush outside lungs because it wants to move from an area of high pressure to an area of low pressure 10. True/False: During inhalation the diaphragm contracts to pull the lungs open Correct Answer True 11. True/False: During inhalation the rib cage lifts in an upward motion to open and expand the lungs: True 12. True/False: as the thoracic cavity expands and the lung volume increase the density of gases filing the lungs decreases Correct Answer True Boyles law = high volume in container = lower pressure in container. Pressure and density have a direct relationship 13. True/False: when the diaphragm rises, thoracic pressure increases and air naturally flows out of the lungs Correct Answer Trie (air naturally flows out of the lungs because of the pressure difference.