Body Systems

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Across
  1. 3. Pumps blood throughout the circulatory system
  2. 6. Group of cells working together to perform a function
  3. 7. Chemical messenger in the endocrine system
  4. 9. Rigid structures that support the body
  5. 13. Organs that filter waste from the blood
  6. 15. Tissues responsible for body movement
Down
  1. 1. Essential gas carried by the circulatory system
  2. 2. Organ where most nutrient absorption takes place
  3. 4. Specialized cells in the nervous system
  4. 5. Fluid that circulates nutrients, gases, and waste
  5. 8. Protein that speeds up chemical reactions in the body
  6. 10. Microorganisms that can cause infections
  7. 11. Digestive organ that breaks down food with acid
  8. 12. Organ that detoxifies and processes nutrients
  9. 14. Largest organ of the integumentary system