10 Questions
What are the primary functions of the ring of smooth muscle surrounding the terminal bronchioles?
To prevent foreign materials from entering the alveoli
What is the main function of the upper respiratory tract mentioned in the text?
To cause sneezing or mucous secretions to expel substances
How do macrophages contribute to lung protection?
By engulfing foreign particles or bacteria in the alveoli
What is the role of the mucociliary apparatus in the respiratory tract as described in the text?
To move mucus and trapped materials up the bronchi and trachea
In what way can an overabundance of bronchoconstrictive activity impact oxygen intake?
Deprive the animal of the ability to bring oxygen into the alveoli
What happens if irritants reach the larynx and mechanically stimulate it, as per the text?
The vocal folds slam shut with a spasm
Where is the cough reflex center located in the body?
Medullary area of the brainstem
Why do small airways lose the benefit of the mucociliary apparatus according to the text?
Because mucus would obstruct very small openings
What is the primary role of antitussive drugs?
To block the cough reflex
Which part of the respiratory tract elicits a coughing response when stimulated?
Trachea
Learn about the body's effective methods for protecting the respiratory tract from injury or infection, including the role of the upper respiratory tract and its mechanisms such as sneezing and mucous secretions.
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