Your skin lungs and kidney are all part of the

excretory system.

The excretory system is responsible for removing waste and maintaining homeostasis in the body. The skin, lungs, and kidneys all play a role in excretion.

The skin, the largest organ of the body, helps in the excretion of waste products through sweat. Sweat contains waste products such as urea and excess salts, which are eliminated through the pores of the skin.

The lungs, as a part of the respiratory system, excrete carbon dioxide, a waste product of cellular respiration. When we breathe out, carbon dioxide is expelled from the body, helping to maintain the balance of gases in our bloodstream.

The kidneys, as the primary organs of the excretory system, play a vital role in filtering blood and removing waste products. They filter out waste substances like urea, excess water, and electrolytes, and produce urine which is then eliminated from the body through the urinary system.

Overall, the skin, lungs, and kidneys work together to eliminate waste products from the body and maintain a healthy internal environment.