5th Lesson 3 Chapter 1 Crossword

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Across
  1. 3. the most important organ of the circulatory system
  2. 5. main organ of your respiratory system that help you breathe
  3. 6. help the blood clot and stop bleeding from wounds
  4. 8. system that includes the kidneys and bladder that removes waste materials from blood
  5. 9. system that includes the lungs, that exchanges carbon dioxide between the body and the environment
  6. 10. system that includes the muscles and allows the body to move
  7. 11. help the body fight infection
Down
  1. 1. carry oxygen to all body cells
  2. 2. system that is made up of the heart, blood vessels and blood. Transports materials throughout the body
  3. 4. system that includes the brain, spinal cord and nerves. Senses your surroundings and controls other organs
  4. 7. spongy connective tissue that cushions the ends of many bones