To help us understand how our respiratory system works, we built these lung models. The plastic bottle is the chest, the ziploc bag is the diaphragm, and the balloon is the lungs. When we pull down the bag (diaphragm), the balloon (lungs) fill up. When we push up the bag (diaphragm), the balloon (lungs) empties.
Tag Archives: respiratory system
nose, throat, larynx (voice box), trachea (windpipe), lungs, alveoli (air sacs), oxygen, carbon dioxide, arteries, capillaries, veins, blood, diaphragm, breathing, inhale, exhale, mucus, epiglottis, bronchial tubes