Across
- 5. a tube that goes to the heart
- 8. protected by the skull
- 9. molecules to protect your body
- 10. when two bones move away from each other
- 12. to fix muscles on bones
- 16. produce the liquid of the sperm
- 18. the don't work for blind people
- 19. the main male hormone
- 20. a red liquid
- 21. cell able to eat bacteria
Down
- 1. can be B or T
- 2. where pregnancy takes place
- 3. same as ovaries but for men
- 4. organs that produce ovum
- 6. an organ to store our sugar
- 7. linked with the heart by the pulmonary vein
- 11. beats in your chest
- 13. can be sensitive or motor
- 14. destroy old blood cells
- 15. 208 in the human body
- 17. a substance that carries information