Function: noun
Date: 1888
: a system of organs functioning in respiration and in humans consisting especially of the nose, nasal passages, pharynx, larynx, trachea, bronchi, and lungs
respiratory system: 1 nostril, 2 nose, 3 nasal cavity, 4 nasopharynx, 5 oropharynx, 6 larynx, 7 trachea, 8 bronchus, 9 lung