Biology for IGCSE & O level - Gas Exchange In Humans (Section 1 - No. 8)
What is the role of cartilage in the trachea?
To filter the air entering the lungs.
To exchange gases.
To provide structural support, keeping the airway open.
To produce mucus to trap pathogens.
Explanation
The cartilaginous rings provide support and prevent the trachea from collapsing during inhalation.
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