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  2. Human digestive system - Wikipedia

    en.wikipedia.org/wiki/Human_digestive_system

    It breaks down both red and white blood cells that are spent. This is why it is sometimes known as the 'graveyard of red blood cells'. [23] A product of this digestion is the pigment bilirubin, which is sent to the liver and secreted in the bile. Another product is iron, which is used in the formation of new blood cells in the bone marrow. [5]

  3. Sphincter - Wikipedia

    en.wikipedia.org/wiki/Sphincter

    At the anus, there are two anal sphincters which control the exit of feces from the body, the internal anal sphincter and external anal sphincter. The inner sphincter is involuntary and the outer is voluntary. The microscopic precapillary sphincters function to control the blood flow into each capillary in response to local metabolic activity. [1]

  4. Gastrointestinal tract - Wikipedia

    en.wikipedia.org/wiki/Gastrointestinal_tract

    The gastrointestinal tract (GI tract, digestive tract, alimentary canal) is the tract or passageway of the digestive system that leads from the mouth to the anus.The GI tract contains all the major organs of the digestive system, in humans and other animals, including the esophagus, stomach, and intestines.

  5. Blood in stool - Wikipedia

    en.wikipedia.org/wiki/Blood_in_stool

    Blood in stool looks different depending on how early it enters the digestive tract—and thus how much digestive action it has been exposed to—and how much there is. The term can refer either to melena, with a black appearance, typically originating from upper gastrointestinal bleeding; or to hematochezia, with a red color, typically originating from lower gastrointestinal bleeding. [6]

  6. Large intestine - Wikipedia

    en.wikipedia.org/wiki/Large_intestine

    The large intestine, also known as the large bowel, is the last part of the gastrointestinal tract and of the digestive system in tetrapods.Water is absorbed here and the remaining waste material is stored in the rectum as feces before being removed by defecation. [1]

  7. Hemodynamics - Wikipedia

    en.wikipedia.org/wiki/Hemodynamics

    For this reason, the blood flow velocity is the fastest in the middle of the vessel and slowest at the vessel wall. In most cases, the mean velocity is used. [18] There are many ways to measure blood flow velocity, like videocapillary microscoping with frame-to-frame analysis, or laser Doppler anemometry. [19]

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    www.aol.com/lifestyle/the-best-amazon-black...

    'Tis the season of savings! Amazon isn't wasting any time getting down to the business of deals for this Black Friday. Save up to 75% on early deals worth shopping already.

  9. Human feces - Wikipedia

    en.wikipedia.org/wiki/Human_feces

    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.