Excretion is the process of throwing out waste matter from our bodies. This process helps the body to be clean. Organs of excretion include the skin, liver, large intestine, lungs, and kidneys. All of them excrete wastes, and together they make up the excretory system. The two major organs involved in the excretion process are :
1. Kidney- It helps in the excretion of waste in the form of urine.
2. Skin - It helps in the removal of waste matter in the form of sweat.