Author: Frank W. Jackson, M.D. Purpose The esophagus is the tube that carries …

Author:  Frank W. Jackson, M.D. Purpose The esophagus is the tube that carries food from the throat to the stomach. However, it is not just a simple tube. The lower esophagus has a specialized muscle around it that usually stays tightly closed, opening only to allow food and liquid into the stomach. It acts to… View Article

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