Across
- 2. The network of nerve cells and fibers which transmits nerve impulses between parts of the body
- 4. A self-regulating process by which biological systems maintain stability
- 6. The glands and organs that make hormones and release them directly into the blood so they can travel to tissues and organs all over the body
- 8. The diminution of an effect by its own influence on the process giving rise to it
- 12. The network of organs and tissues that help you breathe
- 14. An organ that makes one or more substances, such as hormones
- 18. The body's support structure
- 19. A regulatory substance produced in an organism and transported in tissue fluids, such as blood
- 20. Using certain enzymes to break down nutrients
Down
- 1. An organ system consisting of skeletal, smooth, and cardiac muscle
- 3. The mechanical breakdown of food
- 5. feedback The enhancement or amplification of an effect by its own influence on the process that gives rise to it
- 7. Blood vessels that carry oxygen-poor blood to your heart
- 9. A blood vessel that carries blood from the heart to tissues and organs in the body
- 10. The system that circulates blood and lymph through the body
- 11. A self-regulating process by which a living organism can maintain internal stability while adjusting to changing external conditions
- 13. Delicate blood vessels that exist throughout your body
- 15. The organs that take in food and liquids and break them down into Substances
- 16. Large multinucleated cells whose most obvious histological feature is cross-striations
- 17. An occurrence where the output of a system amplifies the system or inhibits the system