BIOD PORTAGE LEARNING FINAL EXAM QUESTIONS AND 100% CORRECT ANSWERS|2025/2026

BIOD PORTAGE LEARNING FINAL EXAM
QUESTIONS AND 100% CORRECT
ANSWERS|2025/2026
How many lobes does the left human lung have? - ANSWER-
B B B B B B B B B B 2



air (and not food) pass in which of the following areas - ANSWER-
B B B B B B B B B B B B nasopharynx



in the respiratory system, gas exchange occurs in the - ANSWER-
B B B B B B B B B B



respiratory bronchioles and pulmonary alveoli B B B B




explain what happens to the soft plate during swallowing - ANSWER-
B B B B B B B B B B



when it comes to swallowing many steps occur. first trachea is closed off so that no foo
B B B B B B B B B B B B B B B B



d or liquid are entering. It then moves inferiorly to cover the trachea. Prevents from entering t
B B B B B B B B B B B B B B B B



he nasal passages as well.
B B B B




explain at least two differences between type I and type II alveolar cells - ANSWER-
B B B B B B B B B B B B B B



Type I form the very thin simple squamous epithelium of the alveoli in junction with ca
B B B B B B B B B B B B B B B



pillaries. Make up roughly 95%of alveolar epithelial cells.
B B B B B B B B




Type II produce and secrete pulmonary surfactant which is needed throughout the alveolar su
B B B B B B B B B B B B B



rface to keep the alveoli open. In addition type II cells can divide to replace damaged type I cell
B B B B B B B B B B B B B B B B B B



s. Make up roughly 5% of alveolar epithelial cells.
B B B B B B B B




T or F: positive pressure is used to move air into the lungs. - ANSWER-
B B B B B B B B B B B B B B



false negative pressure is used to bring air into the lungs
B B B B B B B B B B




t or f : during exhalation the diaphragm contracts to actively push air out of the lunch -
B B B B B B B B B B B B B B B B B



B ANSWER- false- during inhalation B B




T or F: during inhalation the rib cage lifts in an upward motions to open and expland the lungs.
B B B B B B B B B B B B B B B B B B B



- ANSWER-
B true