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Anus intestine rectum stomach

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The digestive system works by pushing food through the intestines which usually takes between 24 to 72 hours. Muscular contractions squeeze peristalsis the food through the different sections of the intestine. These different sections are separated by bands of muscles, or sphincters, which act as valves. The passage of food from one area of the intestines to another is coordinated so that food stays in a specific area for long enough for the gut to do a particular job — absorb fluids and nutrients, or process and expel waste. Food passes from the stomach into the duodenum, which is the tube that leads from the stomach into the intestines.
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Anus intestine rectum stomach
Anus intestine rectum stomach
Anus intestine rectum stomach
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Food is our fuel, and its nutrients give our bodies' cells the energy and substances they need to work. But before food can do that, it must be digested into small pieces the body can absorb and use. The first step in the digestive process happens before we even taste food. Just by smelling that homemade apple pie or thinking about how delicious that ripe tomato is going to be, you start salivating — and the digestive process begins in preparation for that first bite.
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Food is moved through the different sections of the digestive tract by a process called peristalsis, which is a series of wave-like muscle contractions. It usually takes between 24 and 72 hours for food to move through the digestive system. The sections are separated by bands of muscles, known as sphincters, which are valves that control the movement of food from one area of the digestive tract to another. It's important that the food stays in each of the sections long enough for the gut to absorb fluid and nutrients before expelling it as waste. Food passes from the stomach through each of these three parts.
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By Brian Joseph Miller. While rectal bleeding rarely a medical condition, Symptoms associated with rectal bleeding, including diarrhea, constipation, hemorrhoids, anal fissures, and ulcers, can be worrisome. Rectal bleeding is a scary but surprisingly common phenomenon. A person with rectal bleeding has bleeding from the rectum or anus.
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