Respiratory System Components


 * airways
 * alveolar ducts
 * alveolus or air sac
 * brain
 * bronchioles
 * bronchus
 * diaphragm
 * epiglottis
 * esophagus
 * larynx
 * lungs
 * mouth
 * muscles of breathing
 * nasal cavity
 * nostrils
 * pharynx
 * pleural membranes
 * rib cage
 * spinal cord
 * thoracic cage
 * trachea