Overview CNS development (week 3) login to view 1 more bullet Neural tube gives rise to login to view 11 more bullets Neural tube defects Failure of neuropores to fuse during week 4 login to view 8 more bullets Spina bifida oculta login to view 2 more bullets Spina bifida with meningocele login to view 1 more bullet Spina bifida with meningomyelocele login to view 1 more bullet