Science Review Chapter 3
Across
- 5. the top layer of skin
- 8. the system that controls body functions and activities
- 10. the type of circulation that provides large amounts of oxygen and nutrients necessary to keep the heart pumping
- 12. the straw-colored liquid in the blood
- 14. the body's largest internal organ
- 15. large blood vessels that carry blood back to the heart
- 18. a long muscular tube that connects your mouth to your stomach
- 19. a group of tissues specifically arranged to perform a definite function or functions
- 20. the "breathing muscle"
- 21. a break or crack in a bone
- 23. large, spongy organs of the respiratory system
- 25. bundles of fibers that connect the central nervous system with the rest of the body
- 27. large blood vessels that carry blood away from the heart
- 29. the system that moves body parts
- 31. the type of glands that help the thyroid gland control blood calcium
- 32. the type of muscle that functions whether you think about it or not
- 33. the nerve fibers that transmit messages from the central nervous system to the muscles and other organs
Down
- 1. the nervous system composed of the nerves and nerve tissues
- 2. the nervous system that contains the brain and spinal cord
- 3. the system that transports nutrients, wastes, respiratory gases and other materials
- 4. the chief organ of the nervous system
- 6. the system that covers and protects the body
- 7. the chemical substances that control growth, digestion, and other automatic activities
- 9. a group of organs that function together as a unit to perform a definite job for the body
- 11. the largest part of the brain that controls conscious though and reason
- 13. the system that breaks down and absorbs nutrients
- 16. strong, tough tissues that connect to other bones
- 17. the wrinkled, fist sized mass at the back of the brain below the cerebrum
- 18. the hardest substance in the body
- 22. the system that provides oxygen to the blood and removes carbon dioxide from it
- 24. the nerve fibers that transmit information to the brain and spinal cord
- 26. the type of circulation that transports blood back and forth between the lungs and the heart
- 28. the system that concentrates and removes liquid wastes
- 30. the place where two or more bones meet