Across
- 2. cord moves nerve impulses to and from the brain
- 3. where digestion begins
- 4. breaks down food into smaller pieces
- 6. a group of cells that does a specific job
- 9. the system that takes in oxygen and gives off carbon dioxide (lungs, trachea, nose)
- 11. sends and receives messages between parts of the body and the brain
- 12. transports blood throughout the body
- 14. an organ that pumps blood through the body (circulatory system)
- 16. a basic unit of life
- 17. a pair of organs that help us to breathe
- 19. a collection of tissues that has a specific function
- 20. control center of the body
- 24. a system that allows us to move (muscles)
- 26. the body system that controls all the other body systems (brain, nerves, spinal cord)
- 27. the system that absorbs food into the body (esophagus, intestines, stomach, mouth)
Down
- 1. liquid that circulates through the body carrying oxygen and nutrients and eliminating carbon dioxide and other
- 2. a group of parts that work together
- 3. work with the skeletal system to allow movement
- 5. an organism with many cells
- 7. where oxygen enters your body
- 8. to make more organisms of one's own kind
- 10. an animal, plant, or single-celled life form
- 13. the system that provides our body frame (bones)
- 15. a tube that connects the larynx to the lungs
- 18. the pathway that connects the throat to the stomach
- 21. tubes that absorb nutrients and water
- 22. an organism with only one cell
- 23. hard tissue in the body that gives it structure and support
- 25. the system that circulates blood through the body (blood, heart, vessels)