respiratory tract
noun(respiratory tract)
respiratory system
respiratory tract
noun(respiratory tract)
a system of organs functioning in respiration and consisting especially of the nose, nasal passages, nasopharynx, larynx, trachea, bronchi, and lungs —called also respiratory tract
respiratory tract
noun(respiratory tract)
the part of the respiratory system including the larynx, trachea, bronchi, and lungs
respiratory tract
noun(respiratory tract)
the part of the respiratory system including the nose, nasal passages, and nasopharynx