Across
- 3. large muscle below the lungs that helps move air in and out of the lungs
- 4. pumps blood threw your body
- 5. allows movement
- 7. organelles that convert energy the cell receives
- 9. breakdown of large food particles to smaller particles of enzyme
- 10. the basic unit of life
- 11. supplies blood with oxygen from outside air and removes carbon dioxide from your blood.
- 12. two main branches of the trachea that lead into the lungs
- 13. Removes chemical and gaseous wastes from body
- 18. provides a mobile support from for the body
- 20. Thin structure that encloses all contents of plant and animal cells
- 21. usually unicellular organisms that can be seen only through a microscope
- 23. growth of tumors, which take up space in the lungs
- 24. tissue of the brain, spinal chord, and nerves
Down
- 1. fight off infection in your body
- 2. covers the surface of the body and internal organs
- 6. breaks down the food you eat into smaller parts
- 8. tiny blood vessels that connect arteries to veins
- 9. division of the nervous system composed of the brain and spinal cord
- 14. moves bones, and organs that contains muscle tissue
- 15. made of more than one cell
- 16. outer covering of a cell that provides strength and support
- 17. cell fragments in the blood that help stop bleeding and cuts
- 19. thick-walled blood vessels that take blood away from the body and the heart
- 22. coordinates and controls all organs and organ systems