24th September 2021

A newborn infant is found to have an opening at the bottom of her spine

A newborn infant is found to have an opening at the bottom of her spine. The opening has resulted in the herniation of both the meninges and spinal cord. From what stage of embryological development has this abnormality arose, and from which layer of germ cell does this condition derive?

Select the SINGLE most appropriate option from the list below. Select ONE option only.