has part has part has_part characteristic of part of has modifier abnormal digastric muscle morphology abnormal digastric posterior belly morphology 2017-09-18T08:49:22Z https://en.wikipedia.org/wiki/Digastric_muscle MPheno.ontology any structural anomaly of the longer, posterior belly of the digastric muscle arising from the mastoid notch which is on the inferior surface of the skull, medial to the mastoid process of the temporal bone; the posterior belly is supplied by the digastric branch of facial nerve abnormal caudal digastricus morphology abnormal digastric muscle posterior belly morphology MP:0030146 morphology abnormal posterior digastric muscle