suspension

suspension

suspension

Kidneys. Passage of the blood through the kidneys removes from the plasma most of the other substances besides carbon dioxide. That are not needed by the cells.These substances include different end products of, cellular metabolism such as urea and uric acid; they also include excesses. Of ions and water from the food that might have accumulated in the extracellular fluid.The kidneys perform their function by first filtering large quantities of plasma through the glomeruli into the tubules. And then reabsorbing into the blood those substances needed by, the body such as glucose amino acids appropriate amounts,,, Of water and many, of the ions. Most of the other substances that are not needed by, the body especially the metabolic end. Products such as urea are reabsorbed, poorly and pass through the renal tubules into the urine.Gastrointestinal Tract. Undigested material that enters the gastrointestinal tract and some waste products of metabolism. Are eliminated in the feces.Liver. Among the functions of the liver is the detoxification or removal of many drugs and chemicals that are, ingested. The liver secretes many of these wastes into the bile to be eventually eliminated in the feces.