has part has part has_part characteristic of has modifier abnormal cochlear ganglion morphology absent cochlear ganglion absence of the group of nerve cell bodies that conveys auditory sensation from the organ of Corti to the hindbrain and resides on the cochlear part of the vestibulocochlear nerve (eighth cranial nerve) MP:0003146 MPheno.ontology absent cochlear ganglia absent spiral ganglion abnormal absent cochlear ganglion