has part nose proximo-distal subdivision of respiratory tract upper respiratory tract SCTID:361381009 VHOG:0000406 The segment of the respiratory tract that starts proximally with the nose and ends distally with the cricoid cartilage, before continuing to the trachea. Wikipedia:Upper_respiratory_tract MA:0000442 FMA:45661 EHDAA2:0002136 EMAPA:17669