common carotid artery plus branches left common carotid artery plus branches left common carotid artery trunk of left common carotid tree left common carotid artery UBERON:0001536 NCIT:C32956 The leftmost of the two common carotid arteries, originating from the aortic arch in the thorax. EMAPA:35491 FMA:4058 SCTID:362043008 MA:0001927 Wikipedia:Left_common_carotid_artery