name the valve that controns movement of material between the small and large intestines?
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The ileocecal valve, which is located at the junction of the ileum (last part of small intestine) and cecum (first part of large intestine).
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gastroenterologist\n\nOr Tapeworm
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Peristalsis is an involuntary movement of the smooth muscle layer in the alimentary canal.  It occurs whether you eat or not. The purpose of it is to move the food to the lower levels of the digestive tract and eventually removing the unused food (feces).\nIt makes no difference if you eat sitting or standing on your head.  The food, once it is in the grip of peristalsis, will move in one direction only.  Of course if you eat somthing that is harmful to you  like too much alcohol reverse peristalsis occurs and you vomit.
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As we cannot feel if our Valve is open or closed I assume you have already been to a doctor for diagnosis.  If their suggestions have not helped, You may try magnesium supplements.  Magnesium is a natural muscle relaxer (to avoid spasms) (use magnesium ascorbate or amino acid chelate form)and magnesium in the Oxide form is insoluble...which stays in your digestive tract and makes your stool softer.
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An extention of the cell membrane which has the ability to move providing propulsion to the prokaryote
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The short answer is the small intestine. The small intesting does the primary job of absorption, absorbing the nutrients (i.e., proteins, carbohydrates, lipids, vitamins [water and fat soluble], water and electrolytes. However, the large intestine does absorb the remaining additional water, vitamin B, and some electrolytes.\n\nLike I said, that is the short answer...if you need additional information let me know!
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Straining when having a bowel movement will only lead to hemorrhoids as time goes bye.  You need more fiber in your diet.  Metamucil is a good source of fiber and it will stop the need to strain when having a bowel movement.
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do you mean duodenum? that is the large intestine with the small intestine being the ileum. not sur ewhich enzymes are present in each part, been a while since school. look up human enzymes
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longitudinal muscles, and a layer of circular muscles.\nin order for it to move, it generates a continuous series of contractions and relaxations of \nthe circular and longitudinal musles ,(known as peristaltic waves)
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The biggest reason is how much gas is mixed in. But no - you do not make helium in there! Haha, though it does sound like Donald Duck whether y0u talk from your butt or inhale helium from a balloon.  The gas you make in the large intestine is mostly methane. (It's combustible - famous "blue darts" - try it)  Helium is not combustible - it's a noble gas.
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Mouth, esophagus, stomach, small intestine, large intestine, colon, rectum, anus are the parts the food or the waste from food travel through.  Side line contributors are glands such as\nsaliva glands, liver, gall bladder, pancreas.
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The semipermeable membrane that encloses the cytoplasm of a cell.
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Peristalsis.  The sequential contractions of muscles along the canal.
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It contains a very strong spincter muscle that keeps excrement and unreabsorbed water from leaking out of the large bowel until the bowel has time to reabsorb it and put it back into your body's circulation.
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According to the slithery sites in our Digestive System category, we have about thirty feet of intestines in our body! The small intestine, where most of the digesting happens, is over twenty-two feet long! The inner surface of the small intestine is covered with millions of tiny finger-like extensions called villi. These villi absorb the nutrients from the food and pass them into the blood supply. The large intestine, or colon, is about six feet long. It reabsorbs water from the undigested food passed on from the small intestine. A meal usually stays in your stomach for around three hours, but can stay in your digestive system for up to three days.
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This is where the stomach or some part of the bowel passes through a gap between the diaphragm and the abdominal wall into the chest\n\nThis causes acid reflux and oesophagitis and can be repaired by surgery (Nissen's fundoplication)
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osmosis can occur in the small intestine where water is secreated and absorbed, while diffusion occurs in the lungs where oxygen is diffused into the blood stream and carbon dioxide is excreated from the blood stream to the atmosphere