Across
- 1. system that sends messages through neurons
- 4. main organ of the integumentary system
- 7. brings oxygenated blood to body tissues and carbon dioxide to lungs
- 11. type of muscle found on bones
- 13. along with spinal cord makes up the central nervous system
- 14. system that filters blood to regulate body fluids
- 15. main artery carrying oxygenated blood to body cells
- 17. filtering units in kidneys
- 18. brings oxygen to the bloodstream and carbon dioxide out of body
- 19. system that provides for body movement
Down
- 2. system that sends messages through hormones
- 3. system that provides structure and protection
- 5. breaks down food to absorb nutrients into bloodstream
- 6. system that protects the body
- 8. major thigh bone in the skeleton
- 9. system that protects the body
- 10. organ that makes bile to break down fats in food
- 12. gland in the neck that regulates body metabolism
- 16. air sacs in lungs where gasses are exchanged