Untamed Science
Untamed Science: Biology: Human Biology
Learn about the basic organization of the body's organs and the major organ system.
Untamed Science
Untamed Science: Biology: Human Biology: Excretory System
Explore how the human body rids itself of wastes with the function of the kidneys.
The Franklin Institute
Franklin Institute Online: How Your Body Is Like a Factory
This site explores the various systems in the human body such as the circulatory, respiratory, and excretory systems.
Biology 4 kids
Biology4 Kids: Excretion Is Not Elimination
An overview of the excretory system, how it functions, what organs are included, and diseases that might attack it.
Other
The Italian Society of Neonatology: The Kidney Through the Ages
This resource provides information about the excretory system, specifically the kidney.