| Answer | Crossword Clue |
|---|---|
| NEURAL | Relating to the nervous system |
| NEURAL | Of the nervous system |
| NEURAL | Like the nervous system |
| NEURON | Unit of the nervous system. |
| BRAIN | Main part of the nervous system. |
| SPINAL | ... cord (part of the central nervous system) |
| RETINA | Only externally visible part of the central nervous system |
