How does the structure of each organ in the digestive system relate to its function?

The digestive tract is composed of:

     The oral cavity
     The pharynx
     The esophagus
     The Stomach
     The small intestine (or small intestine)
     The large intestine


The mouth is the beginning of the digestive tract; And, in fact, digestion starts here when taking the first bite of food. Chewing breaks the food into pieces that are more easily digested, while saliva mixes with food to begin the process of breaking it down.