Across
- 2. ___ system includes the lungs, nose, and trachea
- 5. a group of cells that work together to perform a funciton
- 7. the body's ability to maintain stability
- 8. ___ system includes the heart, veins, and arteries
- 12. blood vessels that bring oxygenated blood throughout the body
- 14. ____ digestion is enzymes breaking down food
- 16. ___ system is your body's support structure
- 17. a body _____ is a group of organs and tissues that work together
- 18. a muscle _____ is a long cell that forms the muscles of the body
- 19. ___ system includes the glands and organs that make hormones
- 20. blood vessels that bring de-oxygenated blood to the heart
Down
- 1. ___ system includes all tissues/organs involved in producing offspring
- 3. ___ system includes the body's network of tissues, mostly muscles
- 4. ____ digestion is mechanical breakdown of food
- 6. ___ system includes the stomach, intestines, and esophagus
- 9. an organ that produces and releases substances in the body
- 10. microscopic blood vessels that connect arteries and veins
- 11. ___ system includes the brain, spinal cord, and nerves
- 13. ___ system removes excess materials/waste from body
- 15. chemical messengers in the body