What is the Role of Ectoderm in the Nervous System?
The ectoderm is pivotal in the development of the nervous system. The neural tube, formed from the neuroectoderm, differentiates into the brain and spinal cord. Neural crest cells, which migrate from the neural folds, give rise to various structures, including sensory ganglia, autonomic ganglia, and Schwann cells. Therefore, the ectoderm is essential for the formation of both the CNS and PNS.