The alimentary canal and the intestinal tract form a tubelike structure that extends from the mouth to the anus. Find out the names and functions of these structures. In the next chapter, anatomy of the digestive process, you’ll be able identify each one. You will also learn which parts are crucial to the digestive process, such as the intestine. Now it’s time for you to practice your articulation skills.
The mouth breaks down food and secretes early digestive fluids to begin the process of digestion. The food then travels down the esophagus (a muscular tube connecting the stomach and mouth). The esophagus is protected by a ring-like muscle at the end, which controls food’s passage into the stomach and prevents it from going back up. Next, the stomach liquefies food and adds digestive acids.