The function of the esophagus is to move food by peristaltic motion, which is the result of the interaction of the tissue forces in the esophageal wall and the hydrodynamic forces in the food bolus.

• 食道是连接咽下部和胃的管道，它的主要功能是通过蠕动将食物由咽部转运到胃，这个过程主要是由食道壁的组织力与食团的流体动力相互作用完成的。