Cillia can transport radiolabelled particle in antrum with:: (A) 1-20dm/min, (B) 20-30mm/sec, (C) 1-20mm/ min., (D) 20-30mm/min
Answer is C. Cilia can transport radiolabeled particles an average of 6mm/min, with a range of 1-20mm/min. Thus this transport can clear inhaled particles from nasal cavity in 10-20 min.