Which of the following help(s) comprise the defense system of the nose?
1) Clearance of foreign matter by ciliary action
2) Gross filtration by the large hairs of the nasal vestibule
3) Impaction of particulate foreign matter on the nasal mucosa
4) Laminar flow through the concha
A)1, 2, and 3 only
B)2 and 4 only
C)3 only
D)1, 2, 3, and 4

Question

Quizplus · Accepted Answer

The defense system of the nose includes three mechanisms which are clearance of foreign matter by ciliary action, gross filtration by the large hairs of the nasal vestibule, and impaction of particulate foreign matter on the nasal mucosa. Laminar flow through the concha does not help to comprise the defense system of the nose. Therefore, the best choice is A, which includes options 1, 2, and 3 only.

Which of the Following Help(s) Comprise the Defense System of the Nose