part of part of develops_from respiratory tract Anatomical structure that is part of the respiratory system. In mammals consists of upper and lower tracts EHDAA2:0001606 EHDAA:1568 EHDAA:2219 EMAPA:16737 FMA:265130 OpenCyc:Mx4rvvM--pwpEbGdrcN5Y29ycA UBERON:0000065 VHOG:0000393 uberon respiratory system respiratory airway endoderm-derived structure presumptive gut respiratory primordium