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The excretory system
The body system that eliminates cellular wastes from the body through the lungs, skin, kidneys, and digestive system.
Wastes through the skin
excess salts
kidneys
A pair of organs that remove waste from the blood
nephrons
microscopic structures inside the kidneys; more than one million.
glomerulus
A structure where fluid is filtered from the blood
Urine
A liquid that is formed by water and wastes filtered out by blood
Ureters
Tubes that connect the kidney to the bladder
Bladder
A saclike organ that stores urine
Urethra
A tube that exits the bladder