What is From which of the following does' nucleus pulposus is formed: and explain in detail?
Ans. D. (D).Nucleosus pulposus is formed from notochord which has been shown in image as Da. Notochord develops in region lying between the cranial end of the primitive streak and the caudal end of the prochordal plateb. The notochordal process develops from Notochordc. Structural changes of notochord are shown in the below diagram