Podcast
Questions and Answers
What is the primary function of the mucus lining the respiratory passageways?
What is the primary function of the mucus lining the respiratory passageways?
- To trap small particles out of the inspired air (correct)
- To humidify the inspired air
- To warm the inspired air
- To increase the surface area of the alveoli
What is the function of the cilia in the respiratory passages?
What is the function of the cilia in the respiratory passages?
- To absorb oxygen from the inspired air
- To humidify the inspired air
- To move mucus and entrapped particles toward the pharynx (correct)
- To trap small particles out of the inspired air
What is the direction of the 'power stroke' of the cilia in the lungs?
What is the direction of the 'power stroke' of the cilia in the lungs?
- Toward the pharynx (correct)
- Toward the trachea
- Toward the alveoli
- Toward the bronchioles
What is the approximate rate at which the cilia beat?
What is the approximate rate at which the cilia beat?
What is the purpose of the cough reflex?
What is the purpose of the cough reflex?
What type of epithelium lines the respiratory passages?
What type of epithelium lines the respiratory passages?
What is the primary pathway for afferent nerve impulses from the respiratory passages?
What is the primary pathway for afferent nerve impulses from the respiratory passages?
What is the effect of the sudden opening of the vocal cords and epiglottis during a cough?
What is the effect of the sudden opening of the vocal cords and epiglottis during a cough?
What is the purpose of the sneeze reflex?
What is the purpose of the sneeze reflex?
During a cough, what happens to the non-cartilaginous parts of the bronchi and trachea?
During a cough, what happens to the non-cartilaginous parts of the bronchi and trachea?
What is the approximate volume of air that is rapidly inspired during a cough?
What is the approximate volume of air that is rapidly inspired during a cough?
What is the likely velocity of air expelled during a sneeze?
What is the likely velocity of air expelled during a sneeze?
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