in taxon anteriorly connected to Mammalia Homo sapiens vertebral bone 2 cervical vertebra mammalian cervical vertebra 3 3 third cervical vertebra FMA:12521 SCTID:181823007 MA:0001423 cervical vertebrae 3 cervical vertebra 3 EMAPA:19433 UBERON:0004612 C3 vertebra NCIT:C32241 third cervical vertebra of axial skeleton elements are to be defined spatially/topologically. all mammals have 7 cervical vertebrae UMLS:C0459939 under discussion: whether to generalize this beyond mammals, making it purely order-defined The third of the seven cervical vertebrae[ncit,modified].