topic="";availablegames=1 game = new Array (); for (var n = 0; n < availablegames; n++) {game[n] = new Array();} game[0][0]=new Array ("What two structures hold air and send it to the bloodstream?","Lungs","Bronchioles","0lveoli","Stom0ch","The Other Guy");game[0][1]=new Array ("Where SHOULD we breathe in air?","Nose","Mouth","Ears","Gills","The Other Guy");game[0][2]=new Array ("What controls breathing?","Diaphragm","Lungs","Mouth","Eyes","The Other Guy");game[0][3]=new Array ("What tube sends air to the lungs?","Trachea","Esophagus","Artery","Epiglotis","The Other Guy");game[0][4]=new Array ("What do the sinuses NOT do to air?","Compress","Warm","Humidify","Clean","The Other Guy");game[0][5]=new Array ("What causes oxygen to enter the blood stream?","Diffusion","Osmosis","Enzymes","Capillaries","The Other Guy");game[0][6]=new Array ("What does the larynx contain?","Vocal Chords","Salivary Glands","An Air Passageway","Hair","The Other Guy");game[0][7]=new Array ("What keeps food in the right 'tube?'","Epiglottis","Tongue","Glottis","Hairs","The Other Guy");game[0][8]=new Array ("What are the main branches off of the trachea?","Bronchi","Bronchioles","Capillaries","Alveoli","The Other Guy");game[0][9]=new Array ("What are the air sacs in the lungs called?","Alveoli","Bronchioles","Capillaries","Algae","The Other Guy");game[0][10]=new Array ("What enzyme helps transport carbon dioxide to the lungs?","Carbonic Anhydrase","Carbonic Acid","Carbonic Hydridase","Hydric Carbonase","The Other Guy");game[0][11]=new Array ("Where does the oxygen end up?","Mitochondria","Endoplasmic Recticulum","Cell Membrane","Nucleus","The Other Guy");game[0][12]=new Array ("What form of substance cannot live in the blood stream?","Gas","Liquid","Solid","Mushy","The Other Guy");game[0][13]=new Array ("What law governs breathing?","Boyles Law","Law of Conservation Mass","Gendrin's Law","Maltins Law","The Other Guy");game[0][14]=new Array ("How much surface are0is in our lungs?","75 square feet","50 square feet","300 square feet","25 square feet","The Other Guy");