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Questions and Answers
What are the primary functions of the ring of smooth muscle surrounding the terminal bronchioles?
What are the primary functions of the ring of smooth muscle surrounding the terminal bronchioles?
- To open up the airway for better airflow
- To prevent foreign materials from entering the alveoli (correct)
- To promote the entry of potential pathogens into the body
- To stimulate bronchoconstriction
What is the main function of the upper respiratory tract mentioned in the text?
What is the main function of the upper respiratory tract mentioned in the text?
- To slam shut the vocal folds in case of irritation
- To stimulate coughing responses in the larynx
- To trap particles with sticky mucus
- To cause sneezing or mucous secretions to expel substances (correct)
How do macrophages contribute to lung protection?
How do macrophages contribute to lung protection?
- By promoting bronchoconstriction
- By engulfing foreign particles or bacteria in the alveoli (correct)
- By narrowing the airways
- By creating a barrier around the alveoli
What is the role of the mucociliary apparatus in the respiratory tract as described in the text?
What is the role of the mucociliary apparatus in the respiratory tract as described in the text?
In what way can an overabundance of bronchoconstrictive activity impact oxygen intake?
In what way can an overabundance of bronchoconstrictive activity impact oxygen intake?
What happens if irritants reach the larynx and mechanically stimulate it, as per the text?
What happens if irritants reach the larynx and mechanically stimulate it, as per the text?
Where is the cough reflex center located in the body?
Where is the cough reflex center located in the body?
Why do small airways lose the benefit of the mucociliary apparatus according to the text?
Why do small airways lose the benefit of the mucociliary apparatus according to the text?
What is the primary role of antitussive drugs?
What is the primary role of antitussive drugs?
Which part of the respiratory tract elicits a coughing response when stimulated?
Which part of the respiratory tract elicits a coughing response when stimulated?
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