The organs of elimination are as follows:
- Lymphatic system (adenoids, tonsils, appendix, spleen, nodes, vessels, etc.). These break down wastes in such a manner as to render them less toxic in preparation for expulsion. The lymphatic system also plays other roles.
- Liver. The liver further detoxifies wastes. It is the largest internal organ and performs myriad nutritive and eliminative tasks.
- Kidneys. The renal system filters non-utile wastes from the blood and dispatches it to the bladder. The kidneys perform many other functions as well.
- Lungs. The lungs, like most body organs, perform a dual role as supplier and eliminator. They obtain oxygen from the air and supply it to the bloodstream In addition, they remove carbon dioxide and certain other wastes from the bloodstream.
- Bowels or colon. The bowels per form few nutritive tasks other than supplying the body with water in emergencies, and electrolytes should the body require them. On the other hand it carries out of the body digestive wastes and metabolic wastes as may be excreted into it by tubes from other organs.
- Skin. The skin is the most extensive organ of the human body. Among its many functions are protection of the body from outside influences that would disturb homeostasis, temperature maintenance, cooling and warming and elimination of certain wastes in extremely small amounts. In vicarious eliminative processes such as acne, boils, psoriasis, eczema, rashes, measles, poxes, itches, etc. the skin is used as an organ of elimination. The skin performs a nutritive role in receiving sunlight for conversion into vitamin D.
- The tongue is sometimes used by the body as an extra-ordinary organ of elimination. This is very noticeable when you have a furred tongue. The tongue is not a regular organ of elimination but incidentally one in vicarious processes of extraordinary elimination.
There are occasions when the body will undertake massive eliminative measures. The respiratory system and mouth may be utilized in vomiting; the bowels in diarrhea; the mucous membranes as outlets from the circulatory systems (lymph and blood); the kidneys are used for diuresis; and the skin is sometimes used for diaphoresis and eruptions.