Introductory Chapter: Esophagus and Esophageal Cancer

Our body obtains nutritional supplies from the environment through two primary pipes: bronchus and esophagus, the two simplest organs in the respiratory and digestive systems, respectively. While the bronchus passes oxygen to the lung and expels carbon dioxide out of our biological system, the esophagus transports water and food into the stomach from where a sophisticated process of digestion and nutrient extraction begins.