Biology for IGCSE & O level - Gas Exchange In Humans (Section 5 - No. 10)
What is the function of the cartilage rings in the trachea?
To filter the air
To facilitate gas exchange
To keep the airway open
To transport the air to the lungs
Explanation
The cartilage rings provide structural support to the trachea, preventing it from collapsing and ensuring a clear airway.
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