The Human Body - Lessons 1.1-1.2

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Across
  1. 2. Chemical substances produced by glands that affect many body processes.
  2. 4. Process by which nutrients move from the digestive system into the bloodstream.
  3. 5. System that moves gases throughout the body.
  4. 8. The least complex level of organization of the human body
  5. 11. A signal that creates a response
  6. 12. Another name for the circulatory system.
  7. 15. System that produces movement.
  8. 16. Chemical substances needed by body cells that result from the process of digestion.
  9. 17. A group of similar cells performing the same function
  10. 20. Skin and kidneys are examples of these
  11. 21. System that controls the body's responses to the environment.
  12. 22. The muscles attached to bones that provide the force to move the bones
  13. 23. Reaction to a stimulus.
Down
  1. 1. The elbow and shoulder are types of these.
  2. 3. The skin is made of this tissue
  3. 6. This system removes waste products from the body
  4. 7. System that releases chemical signals.
  5. 9. A tissue that has the ability to contract
  6. 10. The control center of a cell
  7. 13. Tissue that connects all of the body’s parts.
  8. 14. Release hormones into the bloodstream.
  9. 18. System that supports the body and protects internal organs.
  10. 19. The circulatory system works with the ___________ system to get nutrients to all body cells.
  11. 20. Each organ in the body is part of a(n) _____________ performing a major function.