Function: Eliminate (get rid of) wastes. Excretory System Function: Eliminate (get rid of) wastes.

Lungs Skin Liver Urinary Tract Rectum Organs Lungs Skin Liver Urinary Tract Rectum

--Eliminate carbon dioxide. Lungs --Eliminate carbon dioxide.

--Skin sweats out salt and water.

Breaks down wastes from metabolism and damaged red blood cells. Liver Breaks down wastes from metabolism and damaged red blood cells.

Kidneys Ureters Bladder Urethra Urinary Tract Organs Kidneys Ureters Bladder Urethra

--Filters blood to remove liquid wastes. --Makes urine (pee). Kidneys --Filters blood to remove liquid wastes. --Makes urine (pee).

--Passes urine from the kidney to the urinary bladder. Ureter --Passes urine from the kidney to the urinary bladder.

--Holds urine until you urinate (pee). Urinary Bladder --Holds urine until you urinate (pee).

--Passes the urine from the bladder to the outside of the body. Urethra --Passes the urine from the bladder to the outside of the body.

Passes the solid wastes to the outside of the body. Rectum Passes the solid wastes to the outside of the body.

--The process of filtering out (or removing) wastes. Filtration --The process of filtering out (or removing) wastes.