Esophagus (sometimes known as the gullet) - the least complex section of the digestive tract, it is a continuous muscular tube through which food passes from the pharynx to the stomach. Food absorption in the esophagus is virtually nil.
It is made out of tissue that is largely resistant to trauma from sharp objects which may be swallowed like bones o large pieces of food.
Common disorders involving the esophagus
While the esophagus is one of the first organs in the urinary tract, many of the liquids and foods that will come through it will end up being excreted as urine while peeing. If you consume red liquids, your urine may appear as orange urine or even red urine. If this happens once or twice, don't worry about it. If this becomes a chronic condition, you may want to do some urine tests to properly diagnose the problem.