what are the main functions of the excretory system
What is the main function in the excretory system? The main function of the excretory system is to get rid of wastes  from the body. It is actually composed of many different structures  and organs in other systems of the boâ¦dy. The organs that contribute  are ones like the lungs, skin, liver, kidneys, colon, and bladder,  just to name a few.