When there is retention of waste products in the system, the phenomenon is called autotoxemia.

The waste products are all toxic. They are eliminated by the different emunctories.

The bile is not entirely an excretory product; it serves several physiological needs. First of all is its action on the bowels. It is nature's laxative. When its elimination is interfered with, the liver becomes diseased. When carried into the bowels as it should be, it is taken up by absorption and used over; after which it is excreted by the skin, lungs, and kidneys.

The skin eliminates the fatty acids and other toxic substances. The lungs carry off water, carbonic acid, and volatile substances taken in with the food. For example, when onions are eaten, the volatile substance is thrown off by the lungs, skin, and kidneys, as evidenced by the breath and the strong odor from the urine. Asparagus causes the urine to be offensive for several hours after that vegetable has been eaten.

The solids in the bile are thrown off by the kidneys. Before this can be done, however, the solids must be rendered soluble. The nitrogenous products must be converted into urea.

The liver assists the kidneys by preparing different substances for excretion.

All organs of the body are commissioned to furnish enzymes for the purpose of preparing all solids within their jurisdiction for assimilation; in other words, rendering the solids dializable. This is necessary, or the system would become fatally clogged up. In this, bacteria become allies of the enzymes.

Blood

The blood has enzymic properties to a great degree. And this is well; for the blood vessels are so numerous and so small that if the blood did not have the power to digest--render all solids dializable--deaths from embolism (obstruction to blood vessels) would be most frequent.

Pancreas

When the pancreas is obstructed in its work, and fails to secrete its digestive ferment, sugar appears in the urine. It is thought that the primary trouble may begin with faulty functioning of the liver.

Thyroid Gland

The thyroid gland has a secretion which appears to be necessary for keeping a perfect nutritive balance. When the gland is cut out, it is said to be followed by tetanic convulsions. Why? Because of imperfect digestion of starch; it also disturbs nutrition to such an extent as to cause myxedema (mucous infiltration of the tissues).

In suppression, from any cause, of the thyroid secretion, it is said that the administration of thyroid extract will correct the symptoms caused by the suppression. The administration of too much extract has been known to kill.

Trembling and albuminuria are symptoms of excessive use of the thyroid extract.

In some cases of obesity and albuminuria it is thought that there is a suppression of thyroid secretion.

Suprarenal capsule has a function to perform in nutrition. Suppression of its secretions gives rise to melasma (dark discoloration of the skin), or bronzed skin. Addison's disease is a tubercular infiltration of the capsule. Symptoms: skin discoloration, progressive anemia, and asthenia, ending fatally.

Testicles And Ovaries

The removal of these organs in young subjects is followed by defective development. Boys remain boys; they fail to develop; their hair is thin and lacking in full development. In animals, the brain is smaller in those that have been mutilated.