Excretory System

Excretory System

Excretion is the process by which the body removes waste products produced by cells during metabolism. It involves multiple organs and systems: the urinary system (kidneys, ureters, bladder, and urethra), the skin (sweat glands), the lungs (removal of CO₂ and water vapor), and o...

Every day, our body works hard to keep us alive digesting food, delivering oxygen, and building new cells. But this also creates waste that must be removed.

That’s the job of the excretory system, which removes wastes and excess water through a process called excretion.

These wastes leave the body in different forms: gas, solid, and ...