<prompt> Structure which develop from neural crest areis;Enamel of toothThoracic ductAdrenal medullaSpinal nerves  <response>: C i.e. Adrenal medullaBrain, spinal cord and cauda equine are derivatives of neural tube not neural crestQAdrenal coex develop from coelomic epitheliwn2; where as Adrenal medulla develops from neural crestQ.Congenital megacolon or Hirschspurgs disease results when the migration of neural crest cells arrests at some point before reaching the anus. QEnamelQ is derived from ectoderm; Mesenchyme of dental papillaQ derived from neural crestHea, blood vessels, lymphatics blood cellsQ develop from mesoderm 