The esophagus is a muscular tube that carries food and liquid from the mouth to the stomach. The esophagus is usually between 10 and 13 inches long. The normal adult esophagus is roughly three fourths of an inch across at its smallest point.
The wall of the esophagus has several layers. According the American Cancer Society, cancer of the esophagus – also referred to as esophageal cancer – starts from its inner layer and grows outward.
Follow the link below for detailed information, including a good illustration of the internal organs.
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