Term Name:	open tracheal system
Synonyms:	invertebrate tracheal system, open tracheal system, tracheal system
Definition:	An open tracheal system is a respiratory system, a branched network of epithelial tubes that supplies oxygen to target tissues via spiracles. An example of this is found in Drosophila melanogaster.
Ontology:	Cell Ontology [UBERON:0005155]