Involved in the mechanics of breathing; The muscles involved in this type of breathing are the diaphragm, the external intercostal muscles, and the accessory respiratory muscles (activated when respiration increases significantly) Forced Exhalation.
Nitro- a combining form (used also adjectively) designating certain compounds of nitrogen or of its acids, as nitrohydrochloric, nitrocalcite; also, designating the group or radical NO2, or its compounds, as nitrobenzene
1 A film-forming agent, most often nitrocellulose, which is also used in auto painting. 2  A solvent, which is the volatile part of your nail polish.  Diluents, such as ethyl acetate, that lower and stabilize the viscosity of the solvent while keeping the nitrocellulose from separating out.