Across
- 2. composed of all bones in the body
- 6. pumps blood
- 11. cycle
- 16. involves the stomach and intestines
- 18. reaching equilibrium
- 20. gives oxygen to blood
Down
- 1. involves the brain and spinal cord
- 3. tear blank
- 4. chemical messengers
- 5. blood vessels that distribute oxygen-rich blood
- 7. production of new life
- 8. a complex network of glands and organs.
- 9. any of the fine branching blood vessels
- 10. works with a series of contractions and releases
- 12. shorten or contract
- 13. involves kidneys, ureters, urinary bladder, and urethra
- 14. breaks down food
- 15. works to keep the body at homeostasis
- 17. sytems skeletal, muscular, nervous, endocrine, cardiovascular,
- 19. single muscle cells