Nose two nostrils (nares), septum, and tube-shaped cartilage inside the nose (turbinates) air passes through the nose or mouth and proceeds into the throat (pharynx) breathing processes term apnea. De nition: shallow breathing word analysis a/pnea not/breathing eu/pnea good/breathing tachy/pnea fast/breathing brady/pnea slow/breathing hypo/pnea under/breathing. Ch 10 respiratory system breathing processes term hyperpnea hai-perp-nee-ah. De nition: dif culty breathing word analysis hyper/pnea over/breathing dys/pnea bad/breathing orthopnea or-throp-nee-ah. De nition: able to breathe only in upright position ortho/pnea straight/breathing hyperventilation hai-per-ven-ti-lay-shun. De nition: overbreathing; the condition of having too much air owing into and out of the lungs; leads to hypocapnia hypoventilation hai-po-ven-ti-lay-shun. De nition: underbreathing; the condition of having too little air owing into and out of the lungs; leads to hypercapnia hyper/ventil/ation over/breathing/process hypo/ventil/ation under/breathing/process upper respiratory term dysphonia dis-fon-ia. De nition: nosebleed word analysis dys/phonia bad/sound/voice from the greek word epistazo, meaning to drip out or upon rhinorrhagia rai-no-ray-jah.