Lesson 3-1:
The Digestive System
Digestion
Digestive Tract
The Digestive Organs
. . . .

Digestive Tract

The human digestive system consists of a long, continuous tube called the digestive tract. Stretched out, it measures 6 m to 9 m in length.

The digestive process starts in the mouth, where food enters, and ends at the anus, where the solid waste of the body is excreted. Other parts of the digestive tract are the esophagus, stomach, small intestine, and large intestine.