Across
- 2. This system obtains and uses oxygen and gets rid of carbon dioxide.
- 6. Pathway of blood headed back to the heart, always deoxygenated.
- 8. Type of muscle that is the biggest that attaches bones with tendons.
- 10. This system provides movement to the body.
- 12. Passageway from bladder for urine to exit the body.
- 13. Principle site of gaseous diffusion between air and blood are _______.
- 14. Blood is oxygenated in the _______.
- 18. A ______ is the smallest part of your muscle that can move.
- 19. This system circulates blood carrying oxygen.
Down
- 1. Type of muscle that makes up the heart.
- 3. This system provides frame support to the body.
- 4. Each animal has 2, and they filter toxins from blood.
- 5. Firm tissue that isn't as hard as bone and is somewhat flexible.
- 7. This system gets rid of waste from the body.
- 9. Type of muscle that controls movement of internal organs.
- 11. "Voice Box"
- 15. Long, fiber like structures that send messages from the body to the brain
- 16. Connections of bone in the animal's body held together with ligaments.
- 17. Control center of the nervous system