human respiratory system larynx and pharynx anatomy

air alveolar alveoli anatomical anatomy asthma biology body bone breathing bronchi bronchioles bronchitis care copd cystic diaphragm emphysema exhale fibrosis graphic health healthy human infographic inhale internal isolated larynx lungs medical medicine organ pain people pharynx physiology pneumonia pulmonary pulmonology ray respiration respiratory sacs sarcoidosis science system trachea tuberculosis