Which of the following digestive system mechanisms occur in the esophagus: propulsion, absorption, chemical digestion, mechanical digestion?

1 Answer

Propulsion and Chemical Digestion



The bolus (balls of clumped food particles) moves in the esophagus by a process called peristalsis. This is basically the contraction and relaxation of antagonistic muscles (circular muscles and longitudinal muscles). The "push and pull"movement causes the bolus to be pushed forward.


Salivary amylase continues to work on the food particles. The amylase breaks down starch into maltose sugars while the water helps for hydrolysis.