1.   Decongestants can be helpful, because they reduce the swelling of the lining of the nose, making air passage easier.

2.   This blocks up the jets and air passages in the carb leading to the engine stopping.

3.   When the worms are mature, and eggs are aspirated into the smaller air passages and parenchyma, consolidation increases and emphysema is more marked.

4.   The spiny cuticular folds abrade the mucosa of the air passages with resulting bronchopneumonia and occlusion of the smaller bronchi and bronchioles.

5.   Asthma, the obstruction of the air passages caused by muscle contraction, can be worsened by allergies to one or more substances.

6.   First, a genetic vulnerability leaves a child with air passages in the lungs that can overreact.

7.   Her nose bone has been wrenched to one side, blocking her air passages.

8.   Horribly swollen tonsils left the boy with an air passage the width of a straw.

9.   Instead of shooting bullets, however, it punctures the air passage with a sharp, steel tip and inserts a strawlike tube.

10.   It tightens up flabby tissues to enlarge the air passages.