86066DS.JPG
© 2012 Nucleus Medical Art/Doctor Stock
air, airway, airways, alveolar, alveoli, alveolus, anatomical, anatomically, anatomy, breathing, bronchi, bronchioles, bronchus, bronhioles, diaphragm, diaphragmatic, doe, exchange, exhr0038, expiration, gas, inaccurate, inspiration, lung, lungs, muscle, muscles, muscular, musculare, muscularis, nasopharynx, new, passages, physiology, pulmonology, r0038, respiration, respiratory, respire, reusables, systems, trachea, tracheas, transport, ways