Rathke's pouch eventually looses its connection with the pharynx. Connects centrally with the dorsal horn of the spinal cord. SHH function is different for different tissues in the embryo. In the nervous system, it is secreted by the notochord, ventralizes the neural tube, inducing the floor plate and motor neurons. Fluid generated by the specialized vascular network, the choroid plexus.
Neuroepithelial cells generate neurons, glia and ependymal cells.
In the brain it is the inner layer, in the spinal cord it is outer layer. The document is for educational purposes and personal use only and should not be reproduced for other purposes. These documents can also be printed out. Both plug-in and reader are available free from this site . Also availalable from Locally .