Function of mucociliary action of upper respiratory tract is:
Correct Answer: Traps the pathogenic organismsvin inspired ait
Description: It moves at a speed of 5-10 mm/min and the complete sheet of mucus is cleared into the pharynx every 10-20 min. The inspired bacteria, viruses and dust paicles are entrapped on the viscous mucous blanket and then carried to the nasopharynx to be swallowed. Presence of turbinates almost doubles the surface area to perform this function. Ref: Dhingra 7e pg 157.
Category:
ENT
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