Digestive & Excretory Systems

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Across
  1. 6. the organ that stores bile
  2. 7. flap of tissue that seals off the trachea
  3. 11. substances that speed up chemical reactions
  4. 13. the process by which the body collects and removes wastes
  5. 14. the watery fluid produced by the kidneys
  6. 16. tiny filtering units in the kidneys
  7. 17. waves of muscular contractions
  8. 18. the process by which nutrients pass through the lining of your digestive system into your blood
Down
  1. 1. chemical that breaks down fats
  2. 2. fingerlike projections lining the small intestine
  3. 3. the major organs of the excretory system
  4. 4. the spread of microorganisms from one food to another
  5. 5. sickness resulting from consuming food containing poison or a disease causing microorganism
  6. 8. a thick liquid of partially broken down food
  7. 9. tiny blood vessels in a nephron
  8. 10. the junction between the digestive tract and the respiratory system
  9. 12. the process by which the digestive system breaks down food into molecules the body can use
  10. 15. produced by the liver from harmful material