abnormal embryonic tissue physiology abnormal neural crest cell physiology 2014-03-27T14:31:00Z MP:0012745 MPheno.ontology abnormal NCC physiology any functional anomaly in the complex process by which multipotent neural crest progenitors acquire migratory and invasive properties, emigrate from the dorsal aspect of the neural tube, migrate along distinct pathways, and differentiate into diverse cell types csmith