1 I am your esophagus. Some people call me a swallowing tube. I think of myself as the most excellent esophagus. You see, I am very important. If it were not for me, food would have no way to get to your stomach.
2 I am like a stretchy pipe or tube that is about ten inches long. I have muscles that squeeze from top to bottom to move food into the stomach. My muscles make it possible for you to swallow when you're hanging upside down!
3 On the inside, I look like a smooth, slippery tube. I have a shiny, pink lining. If you swallow too much air or drink too much soda, I can let the air come back up.
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