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