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Stercobilin is a tetrapyrrolic bile pigment and is one end-product of heme catabolism. [1] [2] It is the chemical responsible for the brown color of human feces and was originally isolated from feces in 1932.
Human feces photographed in a toilet, shortly after defecation.. Human feces (American English) or faeces (British English), commonly and in medical literature more often called stool, [1] are the solid or semisolid remains of food that could not be digested or absorbed in the small intestine of humans, but has been further broken down by bacteria in the large intestine.
It is further processed to become the chemical that gives feces its brown color. [1] Bilirubin is a pigment that results from the breakdown of the heme portion of hemoglobin. The liver conjugates bilirubin, making it water-soluble; and the conjugated form is then excreted in urine as urobilinogen and in the feces as stercobilinogen.
In fact, calcium-containing antacids are known to cause changes in stool color. So if you notice pale or clay-colored stool for the first time, ask yourself if you might have inadvertently taken a ...
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A bit of background on the now-infamous San Francisco poop map, thanks to Florida Gov. Ron DeSantis ... “This is an app where they plot the human feces that are found on the streets of San ...
Human anatomy of the anorecturm (anus and rectum). Defecation (or defaecation) follows digestion, and is a necessary process by which organisms eliminate a solid, semisolid, or liquid waste material known as feces from the digestive tract via the anus or cloaca.