abnormal nervous system physiology abnormal ependyma motile cilium physiology abnormal ependyma motile cilia physiology any functional anomaly of the tiny, motile hair-like projections from the epithelial cells that line the ventricles in the brain and the central canal of the spinal cord, which beat in concert and to move cerebrospinal fluid around the central nervous system 2011-04-14T03:15:16Z csmith MPheno.ontology MP:0011068 abnormal motile cilium physiology