part of part of connected to connected to branching part of branching part of Homo sapiens thoracic aorta phrenic artery descending thoracic aorta thoracic segment blood vessel superior phrenic artery UBERON:0013133 SCTID:198521008 FMA:4163 arteria phrenicea superioris superior phrenic branches arteriae phrenicae superiores A phrenic artery that arises from the lower part of the thoracic aorta and is distributed to the posterior part of the upper surface of the diaphragm, and anastomoses with the musculophrenic and pericardiacophrenic arteries. Wikipedia:Superior_phrenic_artery