This comprehensive resource examines the human excretory system, kidney function, nitrogen wastes, water and salt balance, and more.

Self-guided learning activity where students learn about the structure and function of the human urinary system. There is a short quiz at the end of the lesson to check for understanding.

Explore the anatomy of the human body. Click on an organ or other body part to read more about its structure and function, and then try out an interactive activity for that organ.

Wetlands are an important part of our ecosystem. They are often called the kidneys of the land. Learn about wetlands, where they are located, their value, and what threatens them.

NIDDK provides answers to questions about binge eating disorder, such as how someone knows if they have a binge eating disorder, how common it is, what causes it, the complications, and how to help those with binge eating disorder.

High levels of mercury exposure can cause birth defects, permanent brain or kidney damage, and/or death. This resource focuses on the impacts of mercury in the environment. Learn how mercury can reap havoc on lakes and other aquatic...

Urology covers the entire urological and genital systems for children. These systems include the kidneys, bladder, and genitals. Learn about some of the conditions that are seen, the tests that are used to diagnose them and how they are...

[Free Registration/Login may be required to access all resource tools.] Toxic waste must be disposed of properly or there can be serious consequences. It is the same with your body--your waste needs to be removed from you. And that is...

Learn fun facts and information about the major organs and eight main body systems.

[Free Registration/Login may be required to access all resource tools.] Discusses how the urinary system filters blood and excretes wastes.

[Free Registration/Login may be required to access all resource tools.] Discusses how the urinary system filters blood and excretes wastes.

A description of kidney transplants are provided in this encyclopedia article. Risk factors and expectations after surgery are discussed. Diagrams of the kidney are also provided.

A description of kidney transplants are provided in this encyclopedia article. Risk factors and expectations after surgery are discussed. Diagrams of the kidney are also provided.

Intellihealth looks at what happens in the body of someone with Type II Diabetes when blood sugar levels are elevated.

[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...

This interactive site provides animations and activities in several areas of physiology. The images are simple, but clear. The accompanying text provides a good description of the process being shown.

"What are electrolytes?" Find the answer to this question and read information on potassium, chloride, hyperkalemia, and kidney disease.

Learn about a the scientist who won a Nobel Prize in Physiology or Medicine for her work in the scientific discovery of drugs to treat leukemia and herpes, and to prevent the rejection of kidney transplants.

This is an in-depth discussion on how the urinary system works. Also includes information about what can go wrong in the urinary system and how someone can get help.

This multiple-choice quiz on the excretory system allows students to get hints for each question and check their answers after submitting.

For elementary school children, this page presents information about lungs, muscles, digestive system, teeth, skin, tongue, hair, heart, and more.

Turner Syndrome affects about 1 in every 2000 females. This can cause many of the changes that take place during puberty to not develop. This article focuses on the effects of Turner Syndrome and how people live with the disorder. Links...

The changes that an adolescent goes through can be intimidating or unexpected. What can be worse though is watching peers change as your body still appears like a child. This article confronts this feeling and provides support for those...

Learn the structure of the urinary system and then take a quiz to test your knowledge.