Where does cilia end in respiratory tract?

I have in my notes that cilia even goes further into the respiratory bronchioles. Am I wrong? I think it came from a UWorld explanation.

Anything "bronch-" = cilia. <-- What I have written down.

It actually would make sense NOT to have cilia in the respiratory bronchioles since they are epithelial cells that can participate in gas exchange right?

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Where does cilia end in respiratory tract?