Communicable diseases are spread from person to person or from animal to person, while a lifestyle disease such as obesity affects how someone lives.
Answer:The esophagus is a muscular tube connecting the throat (pharynx) with the stomach. The esophagus is about 8 inches long, and is lined by moist pink tissue called mucosa. The esophagus runs behind the windpipe (trachea) and heart, and in front of the spine.
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