CK-12 Foundation
Ck 12: Excretory System Diseases
[Free Registration/Login may be required to access all resource tools.] Kidney stones. Imagine having that travel through your excretory system. Kidney stones can be more than a few millimeters in diameter. Painful? Sometimes extremely...
CK-12 Foundation
Ck 12: Life Science: Excretory System Problems
[Free Registration/Login may be required to access all resource tools.] The urinary system controls the amount of water in the body and removes wastes. Any problem with the urinary system can also affect many other body systems. Learn...