3. Functions of the urinary system. Collect water and filters body fluids. Removes and concentrates waste products from body. Eliminates excretory products from body.

4. Kidney The kidney is a bean shaped organ that removes harmful substances from the blood.

5. Bladder The bladder is a baglike organ that stores urine until it can be eliminated through the urethra.

6. Ureters The ureters is a slender tube that carries urine from each kidney to the urinary bladder.

7. Urethra The urethra is a slender tube that carries urine and also semen through the penis to the outside; in female it is a slender tube that carries urine to the outside.

8. Nephron The nephron removes a variety of harmful substances from the body. It is located inside the kidney. There are millions of nephrons inside the kidney.

9. Diseases that affect the system Nephritis- is the presence of blood in the urine. Nephrosis- is when there is excretion of abnormally large amounts of protein causing foamy urine.

10. Urinary system relationships with other systems. The nervous and skeletal systems help regulate the release of urine. The circulatory system helps cleansing the blood off wastes and removing excess fluids.

11. If the urinary system failed If the system failed the person will not be able to get rid of wastes which causes death.

12. Citations http://biology.clc.uc.edu/courses/Bio105/kidney.htm (January 11 th 2010) http://biology.clc.uc.edu/courses/Bio105/kidney.htm http://www.emc.maricopa.edu/faculty/farabee/BIOBK/Bio BookEXCRET.html (January 12 th 2010) http://www.emc.maricopa.edu/faculty/farabee/BIOBK/Bio BookEXCRET.html http://www.biology4kids.com/files/systems_excretory.htm l (January 25 th 2010) http://www.biology4kids.com/files/systems_excretory.htm l http://www.ehow.com/how-does_4571111_systems-does- urinary-system-work.html (January 10 th 2010) http://www.ehow.com/how-does_4571111_systems-does- urinary-system-work.html Holt Science and Technology; Human Body System and Health (January 11 th 2010)