connected to connected to Homo sapiens costo-cervical trunk intercostal artery dorsal intercostal artery http://upload.wikimedia.org/wikipedia/commons/7/75/Gray530.png The highest intercostal artery (supreme intercostal artery, superior intercostal artery) is an artery in the human body that usually gives rise to the first and second posterior intercostal arteries, which supply blood to their corresponding intercostal space. It usually arises from the costocervical trunk, which is a branch of the subclavian artery. classes unified on basis of spatial anatomy ontology synonyms UBERON:0006198 Wikipedia:Highest_intercostal_artery SCTID:198427009 MA:0001943 superior intercostal artery arteria intercostalis suprema EMAPA:37078 dorsal branch of superior intercostal artery FMA:76998 supreme intercostal artery