| Ectoderm |
|
|
| Neural |
|
| plate |
|
|
|
| Neural |
|
| groove |
|
|
|
| Neural
tube wall: |
|
| neurons & glia of CNS |
|
|
|
| Neural |
|
| tube |
|
|
|
| Neural
tube cavity: |
|
| ventricular system |
|
|
|
| Neural crest: PNS |
|
| neurons,
etc |
|
|
|
| White matter |
|
| Gray matter |
|
| NTA 3-1 |