Digestive tract

The digestive tract.

The digestive tract includes the mouth, the esophagus, the stomach, the small and large intestines, and the rectum.

The digestive tract is divided into upper and lower parts:

  • The upper digestive tract includes the mouth, esophagus, stomach, and first part of the small intestine.
  • The lower digestive tract includes the last part of the small intestine, the large intestine, and the rectum.

Current as of: May 1, 2026

Author: WebMD Ignite Staff
Clinical Review Board
All WebMD Ignite education is reviewed by a team that includes physicians, nurses, advanced practitioners, registered dieticians, and other healthcare professionals.

Current as of: May 1, 2026

Author: WebMD Ignite Staff

Clinical Review Board
All WebMD Ignite education is reviewed by a team that includes physicians, nurses, advanced practitioners, registered dieticians, and other healthcare professionals.