Esophagus

The esophagus is a muscular tube about 8 inches long that connects the throat (pharynx) to the stomach. Its main role is to transport food and liquids after swallowing, using coordinated muscle contractions called peristalsis. When you swallow, the esophagus moves the food downward through these waves, ensuring it reaches the stomach for digestion. The esophagus is lined with mucous membrane to help smooth the passage and has a valve called the lower esophageal sphincter that prevents stomach acid from flowing back into the esophagus. It plays a crucial role in the process of digestion and safe movement of food.