What is the excretory system?

The excretory system is the body system responsible for removing waste products and harmful substances produced during metabolic activities.

It helps maintain the internal balance of the body by eliminating wastes such as urea, excess salts, and extra water.

In humans, the main organs of the excretory system are the kidneys, ureters, urinary bladder, and urethra. The kidneys filter the blood and produce urine, which carries waste materials out of the body.

The excretory system is essential for maintaining proper chemical balance, regulating water levels, and keeping the body healthy.