Across
- 1. The Bone Builder; cells that build new bone.
- 3. The Gap; the space where two neurons whisper to each other.
- 5. The Tough Guy; the protein-breaking enzyme that thrives in stomach acid.
- 7. The Bell; the brain part responsible for balance and coordination.
- 10. The Motor; the thick muscle layer of the heart wall.
- 12. The Bone Breaker; cells that crash down old bone tissue.
- 13. The Axis; the vertical center bone of your ribcage.
- 16. The Bridge; connects bone to bone.
- 17. The Engine; the smallest unit where muscle sliding happens.
- 19. The Grapes; tiny air sacs where the oxygen magic happens.
- 20. The Shield; the outermost layer of your skin.
Down
- 2. The Red Delivery Truck; carries oxygen in the blood.
- 4. The Power Plant where ATP energy is manufactured.
- 6. The Quarterback; the master gland that calls the plays.
- 8. The White Knight; immune system cells that fight infection.
- 9. The Espresso Machine; the high-pressure filter at the kidney door.
- 11. The Parachute; the muscle that pulls down to inflate the lungs.
- 14. The Loaf of Bread; a horizontal cut through the middle of the body.
- 15. The Gatekeeper; the hormone that unlocks cells to let glucose inside.
- 18. The Tie; connects a muscle to a bone.