Direction of fusion of neural folds during formation of neural tube is:
Caudal
Cranial
Both of the above
None of the above
Gradually, the neural folds approach each other in the midline, where they fuse. Fusion begins in the cervical region (fifth somite) and proceeds cranially and caudally. As a result, the neural tube is formed. Ref: Langman's embryology 11th edition Chapter 6.