Question

Which one of the following has smallest diameter
1) tracheae 2) right primary bronchus 3)left primary bronchus 4)respiratory bronchioles

Answer 1

Answer:

respiratory bronchioles has the snallest diameter

hope it helps u

Answer 2

Answer:

Explanation:

Respiratory bronchioles is your correct answer..

In descending down in air passage way (respiratory pathway ) from nostrils to pharynx,to larynx,trachea,bronchi and to bronchioles,diameter gets smaller and smaller.

Bronchioles have diameter less than 1 mm.

HOPE IT WILL HELP YOU!