abnormal carotid artery morphology abnormal external carotid artery morphology MP:0012731 MPheno.ontology any structural anomaly of the terminal branch of the left or right common carotid artery which supplies oxygenated blood to the throat, neck glands, tongue, face, mouth, ear, scalp and dura mater of the meninges csmith abnormal external carotid morphology 2014-03-21T15:56:12Z