* Kidneys: The primary organs of the excretory system. They filter waste products from the blood and produce urine.
* Ureters: Tubes that carry urine from the kidneys to the bladder.
* Bladder: A sac that stores urine before it is eliminated.
* Urethra: The tube that carries urine from the bladder to the outside of the body.
Other organs that play a role in excretion:
* Skin: Sweat glands in the skin help remove excess water, salts, and a small amount of urea.
* Lungs: The lungs excrete carbon dioxide, a waste product of cellular respiration.
* Liver: The liver filters the blood and converts harmful waste products into less toxic forms.
* Large Intestine: The large intestine removes solid waste products from the body.
While these organs work together to remove waste, it's important to note that the kidneys are the central players in the excretory system.
