The Excretory system allows us to terminate waste from our body. Waste comes in 2 forms, liquid and solid - Liquid waste also known as Urine. Urine is built up by Salt, Water and other useless minerals. The Excretory system also terminates solid waste and it is called Poop. Poop is a bunch of different types of food crunched up together. When we eat, the food goes thru a system called digestive system and it allows the food to go thru different stages. At the very end there is a part called anus and it allows the food to go out.
What would happen without the Excretory system? Well our excretory system is very important just like any body system. Without a way for the waste to get out the cells will soon poison itself and die.
Organs in the Excretory system Three most important organs Kidney: The Kidney allows the body to filter the food and our drink. Skin: Our skin is also part of the Excretory system, it's job is to terminate liqiud waste by sweating. Lungs: The Lungs exchange carbon dioxide which we breathe in into oxygen. Liver