2. Function: To remove wastes from the body

3. Digestive Organs Large Intestine: It reabsorbs water from indigestable food and then expels it from the body as feces Liver: Filters toxins like ammonia

4. Respiratory Organs The lungs remove carbon dioxide from the body when you exhale Oxygen and carbon dioxide are exchanged between the alveoli and the capillaries that surround them.

5. Skin Small amounts of antibodies, urea, ammonia, lactic acid, and vitamin C are removed through sweating Salt (sodium chloride NaCl) is lost when you sweat Sweat is 99% water and comes from blood plasma filtration

6. Urinary System The kidneys filter the blood and remove nitrogen-containing metabolic wastes, toxins and drugs and expel them in urine. They also maintain the proper balance between water and salts, and between acids and bases.