Human Body Systems

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Across
  1. 3. This system is also known as the Immune system
  2. 4. This system works together to turn food and liquids into building blocks
  3. 6. Hormone-producing glands scattered throughout the body
  4. 7. This system allows us to breath.
  5. 9. Some doctors say this is the most important system in the body.
  6. 10. This system is closely related to another system
  7. 11. This system includes the brain and the spinal cord
Down
  1. 1. The organs, glands, and other structures that make offspring
  2. 2. The primary function of the muscular system is movement
  3. 5. This system includes hair, nails, and skin
  4. 8. This system is also known as the cardiovascular system