OBO_REL:part_of (UNDECLARED) artery pectoral artery PA TAO:0005086 The pectoral (subclavian) arteries originate from the dorsal aorta and takes the blood outward into the fin from the paired portion of the dorsal aorta posterior to the last aortic arch. Kimmel et al. 1993 subclavian artery teleost_anatomy pectoral fin vasculature