Across
- 2. organ that allows the sense of smell
- 3. system that contains the heart and blood vessels
- 5. this system brings oxygen into the body and helps remove carbon dioxide from the body
- 6. a pair of breathing organs that remove carbon dioxide and bring oxygen to blood
- 8. largest muscle in the human body
- 9. bones in the spine
- 10. this system control all feelings, thoughts, learning, memory, and senses.
- 13. carries messages to the brain
- 14. line consisting of nerves that carry incoming and outgoing messages to the brain and the rest of the body
- 16. bodies hardest working muscle
- 18. three pound organ that controls all functions of the body
- 20. allows the arm to bend
Down
- 1. system made up of 206 bones
- 4. this systems main purpose is to allow movement
- 7. a tube in the respiratory system that connects the pharynx and the lungs
- 11. transports blood away from the heart
- 12. returns blood back to the heart
- 15. smallest bone in the skelton
- 17. allows extension of the forearm at the elbow joint
- 19. where bones meet