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Questions and Answers
What determines the location and extent of dust deposition in the lungs?
What determines the location and extent of dust deposition in the lungs?
- The weight of dust particles
- The shape of dust particles
- The color of dust particles
- The size of dust particles (correct)
What happens to relatively large particles in the respiratory system?
What happens to relatively large particles in the respiratory system?
- They will be exhaled immediately
- They will be absorbed by the lungs
- They will remain in the lower respiratory tract
- They will usually be carried back to the mouth by ciliary action (correct)
What happens to ultra-fine particles in the respiratory system?
What happens to ultra-fine particles in the respiratory system?
- They are carried back to the mouth by ciliary action
- They are absorbed by the upper respiratory tract
- They can penetrate deep into the lungs (correct)
- They are immediately exhaled
