What are the five main channels of elimination recognized in a broader physiological view?
The Bowels, Kidneys, Skin, Lungs, and Liver/Gallbladder
A broader view of waste management recognizes five primary avenues the body uses to maintain internal balance, collectively termed the five channels of elimination. These channels are defined by the primary organs involved: The Bowels (Intestines) handle undigested food matter; The Kidneys (Urinary System) filter blood for water-soluble metabolic waste like urea; The Skin uses perspiration to excrete small amounts of water, salts, and urea, which is also crucial for thermoregulation; The Lungs continuously eliminate carbon dioxide, a byproduct of cellular respiration; and finally, the Liver/Gallbladder detoxifies substances, eliminating processed waste via bile which exits through the bowels. Focusing only on urine and feces overlooks this necessary physiological redundancy.
