| Answer | Crossword Clue |
|---|---|
| CORE | Central part of the Earth |
| CORED | Removed the central part of. |
| SPINAL | ... cord (part of the central nervous system) |
| RICA | Part of the name of a Central American republic. |
| COSTA | Part of the name of a Central American republic. |
| RETINA | Only externally visible part of the central nervous system |
