important not only in forming the notochord itself but also in inducing development of the overlying ectoderm into the neural tube
will eventually induce the formation of vertebral bodies.
ventral floor of the notochordal process fuses with endoderm.
The notochord will form the nucleus pulposus of interverterbral discs. There is some discussion as to whether these cells contributed from the notochord are replaced by others from the adjacent mesoderm.