Here's a breakdown of how it works:
* Kidneys: Filter blood and produce urine, which contains waste products like urea, creatinine, and excess water.
* Ureters: Transport urine from the kidneys to the bladder.
* Bladder: Stores urine until it's released.
* Urethra: Carries urine out of the body.
Other organs also contribute to waste removal:
* Lungs: Remove carbon dioxide, a waste product of cellular respiration.
* Skin: Excretes sweat, containing water, salt, and urea.
* Liver: Filters blood and produces bile, which helps remove waste products from the digestive system.
* Large intestine: Eliminates solid waste (feces) from the digestive system.
The excretory system plays a crucial role in maintaining homeostasis by removing waste products and regulating fluid balance within the body.