@article {695405,
	title = {Nervous system, embryological development},
	journal = {Originally published in K. Lee Lerner and Brenda Wilmoth Lerner, eds. World of Anatomy and Physiology. Cengage | Gale},
	year = {2002},
	abstract = {
	This is a preprint of an article originally published in K. Lee Lerner and Brenda Wilmoth Lerner, eds. World of Anatomy and Physiology. Thomson | Gale. 2002.



	The organs of the neural system develop from ectodermal cells, the outermost layer of embryonic germ cells. The covering of the neural system and the blood vessels that supply nervous tissue derive from the mesoderm.



	Immediately after formation of the embryonic disk, a thickening occurs in the ectoderm along the longitudinal axis to form the neural plate. This plate then folds along its long axis to form a groove. The sides of the groove are neural folds, which fuse on the dorsal side to form the neural tube. The neural tube is divided into three basic layers, and the cell types in these layers take on the name of the layer in which they are located. The outermost layer of cells in the marginal layer becomes marginal layer cells. The middle layer, known as the mantle layer, gives rise to mantle cells. The innermost layer, the ependymal layer, forms ependymal cells. (download to read more)

},
	author = {K.Lee Lerner}
}
