Across
- 2. Your --- protects your brain.
- 3. Your brain uses the --- system.
- 6. The brain is an --- of the body.
- 7. Your nerves also send --- to your brain.
Down
- 1. An organ is a group of --- that have special jobs
- 3. Your brain sends signals to your ---.
- 4. The --- controls most of the body's activities.
- 5. Organs do specific --- for your body.