has part has part has_part characteristic of part of has modifier abnormal subclavian artery morphology MPheno.ontology MP:0003395 any structural anomaly of the right or left subclavian arteries; the right subclavian artery normally extends from the brachiocephalic artery to the right side of the body and the left subclavian artery extends from the aortic arch to the left side of the body abnormal systemic artery morphology morphology abnormal subclavian artery