<prompt> Nucleus pulsosus is derived from ?SclerotomeMyotomeNotochordNone  <response>: Ans. is c i.e., Notochord Development of veebral columnThe human nervous system develops from neuroectoderm.During development, behind the neuroectoderm lies the mesoderm paraxial mesoderm that encloses the notochord a derivative of endoderm.This paraxial mesoderm give rise to somites.Somites fuher differentrated intoDermatomyotome :- Give rise to skeletal muscles and dermis.Sclerotomes :- Give rise to veebral column.Sclerotomes which surround notochord stas projecting posteriorly dorsally to surround neural tube and forms.Ventral sclerotomes :- Give rise to veebral body and annulus fibrosus.Lateral sclerotomes :- Give rise to veebral arch pedicle and lamina.Dorsal sclerotomes :- Give rise to spinous process.The notochord forms the nucleus pulsosus. 