Gracile nucleus absent in adult opossums after leg removal in infancy.
D000818:Animals; D006614:Hindlimb / Q000294:innervation*; D008526:Medulla Oblongata / Q000254:growth & development*; D009893:Opossums; D010525:Peripheral Nerves / Q000502:physiology*; D011984:Sensory Receptor Cells / Q000502:physiology*; D013116:Spinal Cord / Q000254:growth & development*