TCA: Biology: Pathway of Air/Respiratory SystmVersion en ligne Label terms and process par Elvira Trevino 1 Nasal Cavity 2 Oral Cavity 3 Nostrils 4 Mouth 5 Pharynx 6 Epiglottis 7 Larynx 8 Trachea 9 Right Pulmonary Bronchus 10 Ribs 11 Diaphragm 12 Air entering through the nostrils 13 Deoxygenated air leaving the body after gas exchange 14 Alveoli 15 Left primary bronchus 16 Blood Capillaries 17 Bronchioles