Esophagus

Real World Example

Imagine trying to send a marble down a narrow, flexible tube without letting it bounce out. In the same way, the esophagus functions as a muscular tube that efficiently guides food from the mouth to the stomach, preventing it from going astray. Just as the tube directs the marble to its destination using its contours, the esophagus uses rhythmic muscle contractions to ensure the food smoothly reaches the stomach, much like guiding an object through a pathway.

Real World Example Illustration