Across
- 4. blood vessel that carries blood from the heart to tissues and organs in the body
- 6. consist of a single muscle cell
- 8. he major controlling, regulatory, and communicating system in the body
- 10. type of blood vessel that return deoxygenated blood from your organs back to your heart
- 11. your body mechanically breaks down food, grinding or smashing it into smaller pieces
- 13. chemical substances that act like messenger molecules in the body
- 14. organ system consisting of skeletal, smooth, and cardiac muscle
- 16. involves the secretions of enzymes throughout your digestive tract
- 19. made up of blood vessels that carry blood away from and towards the heart
- 20. organs that take in food and liquids and break them down into substances that the body can use for energy, growth, and tissue repair
Down
- 1. bodily system that consists of the bones, their associated cartilages, and the joints
- 2. systems that excrete wastes from the body
- 3. organ that makes one or more substances
- 5. network of organs and tissues that help you breathe
- 7. organism's ability to keep a constant internal environment
- 9. tissues, glands, and organs involved in producing offspring
- 12. composed of cells that have the special ability to shorten or contract in order to produce movement of the body parts
- 15. self-regulating process by which an organism tends to maintain stability while adjusting to conditions that are best for its survival
- 17. minute thin-walled vessel of the body
- 18. complex network of glands and organs