What are the four major functions of the excretory system?
The excretory system removes waste products such as carbon dioxide and solid and liquid wastes, through the use of various organs and glands located throughout the body.SignificanceThe excretory system has four main functions which involve the kidneys, lungs, sweat glands and skin and the liver.The KidneysThe kidneys, the main organs in the excretory system, are responsible for removing urea, toxins, excess water, and unwanted salts by filtering these impurities out of the blood and turning them into urine to be passed through the urinary system. The kidneys are responsible for removing liquid waste.The LungsThe lungs eliminate excess water vapor and carbon dioxide that enters the body through breathing, through the process of exhalation. The lungs are responsible for removing gaseous waste.Sweat Glands and SkinThe sweat glands, in conjunction with the skin, act to remove excess water and salts in the form of sweat. The sweat glands are responsible for removing trace liquids and solid
