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
LINKS. Nitrous Oxide. Nitrous oxide (N 2 O) is a colourless, non-flammable gas with a sweetish odour, commonly known as laughing gas, and sometimes used as an anaesthetic. Nitrous oxide is naturally produced by oceans and rainforests.