Excretion (Ekskresi)

What is excretion?
What are the organs for excretion?

What is excretion?
Excretion is the process of eliminating waste products of metabolism and other materials that are of no use. The rate at which excretion of toxic substances occurs is important in determining the toxicity of a substance. The faster a substance is eliminated from the body, the more unlikely a biological effect will be.

What are the organs for excretion?
The primary organs involved in excretion are the kidneys, liver and lungs. Minor amounts of substances may leave the body through sweat or milk, they may also be deposited in inactive tissue such as nails, haris or the outer layer of skin.

Reference:
Kent, C. 1998. Basics of Toxicology. John Wiley & Sons, Inc. New York
http://en.wikipedia.org/wiki/Excretion