has part has part has_part occurs in occurs in characteristic of part of has modifier Purkinje cell cell migration abnormal neuronal migration abnormal Purkinje cell migration MPheno.ontology 2010-02-15T11:34:30Z MP:0010008 csmith any anomaly in the movement of immature Purkinje cells from the ventricular zone of the fourth ventricle along radial glial cells to the forming Purkinje cell layer during development of the cerebellar cortex abnormal Purkinje neuron migration abnormal process quality