Biology, 23.07.2020 21:01 steven122048i

A hiatal hernia or failure of the lower esophageal (cardiac) sphincter to close causes the stomach contents to back up into the esophagus. This causes the esophageal wall to have a burning sensation (heartburn) and, in serious cases, bleeding. What causes the burning sensation and bleeding to occur

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A hiatal hernia or failure of the lower esophageal (cardiac) sphincter to close causes the stomach c...

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