has part has part has_part characteristic of part of has modifier abnormal spinal cord morphology abnormal spinal cord grey matter morphology abnormal spinal cord grey columns morphology abnormal spinal cord gray columns morphology any structural anomaly of the ridge-shaped grey matter of the spinal cord that extends longitudinally through the center of each half of the spinal cord, and are largely or entirely composed of nerve cell bodies and their dendrites and some supportive tissue MA:0000002 MPheno.ontology MP:0008503 abnormal spinal cord mantle layer morphology abnormal spinal cord gray matter morphology morphology abnormal gray matter of spinal cord