Select all of the answers that apply.. if you have respiratory or heart problems, can make it worse..
carbon monoxide.
oxygen.
nitrogen.
sulfur oxide.
nitrogen oxide

Select all of the answers that apply.. . If you have respiratory or heart problems, can make it worse:

-carbon monoxide
-nitrogen oxide

Air goes past the epiglottis and into the trachea when you breathe in. from there, it goes to your vocal cords in the larynx until it reaches the bronchi. from the bronchi, air passes into each lung.