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Across 5. Tube which allows urine to leave the body. 6. We breath air into it. 8. The general condition of the body. 11. The removal of waste from the body. 13. To reduce in bodily substance. 14. Is produced by breathing out. 16. The fluid that circulates the body of human beings. 18. Fluid waste matter excreted by the kidneys, in humans being a yellowish, slightly acid, water fluid. 19. Allow urine to reach storage area. 20. Filter blood.

Down 1. Produced by the liver after protein has been digested. 2. We get P______ out of meat. 3. A substance that provides nourishment essential for growth and maintenance of life. 4. Break down food in the stomach and intestines into substances that can be used by the body. 7. Transports wastes and nutrients. 9. A large, reddish brown organ located in the upper right side abdominal area. 10. Is produced by urine, sweat and faeces. 12. Urine storage. 15. Each kidney contains over a million ________. 17. Bodily waste matter dishcharged from the anus.