GI Tract Guide

The gastrointestinal (GI) tract is the passageway of the digestive system that runs from the mouth to the anus, carrying food and liquids from ingestion, digestion, and absorption to evacuation through feces. This interactive guide will help you learn about the organs that make up the GI tract and how they can be impacted by Crohn’s disease and ulcerative colitis.

 

image description
Esophagus Stomach Proximal Small Bowel (Duodenum and Jejunum) Ileum Terminal Ileum Ileocecal Valve Appendix Cecum Ascending Colon Descending Colon

How to Use the Guide

Click the + hotspots for a detailed view of the GI tract, including the location and function of each organ and how they may be affected by IBD.

Start exploring

Esophagus

  • purple Crohn's Disease
  • orange Ulcerative Colitis

Stomach

  • purple Crohn's Disease
  • orange Ulcerative Colitis

Proximal Small Bowel (Duodenum and Jejunum)

  • purple Crohn's Disease
  • orange Ulcerative Colitis

Ileum

  • purple Crohn's Disease
  • orange Ulcerative Colitis

Terminal Ileum

  • purple Crohn's Disease
  • orange Ulcerative Colitis

Ileocecal Valve

  • purple Crohn's Disease
  • orange Ulcerative Colitis

Appendix

  • purple Crohn's Disease
  • orange Ulcerative Colitis

Cecum

  • purple Crohn's Disease
  • orange Ulcerative Colitis

Ascending Colon

  • purple Crohn's Disease
  • orange Ulcerative Colitis

Descending Colon

  • purple Crohn's Disease
  • orange Ulcerative Colitis
image description
Rectum Anus Internal Hemorrhoids External Hemorrhoids Internal Anal Sphincter External Anal Sphincter Anal Glands Anal Crypts Anal Canal and Dentate Line

How to Use the Guide

Click the + hotspots for a detailed view of the GI tract, including the location and function of each organ and how they may be affected by IBD.

Start exploring

Rectum

  • purple Crohn's Disease
  • orange Ulcerative Colitis

Anus

  • purple Crohn's Disease
  • orange Ulcerative Colitis

Internal Hemorrhoids

  • purple Crohn's Disease
  • orange Ulcerative Colitis

External Hemorrhoids

  • purple Crohn's Disease
  • orange Ulcerative Colitis

Internal Anal Sphincter

  • purple Crohn's Disease
  • orange Ulcerative Colitis

External Anal Sphincter

  • purple Crohn's Disease
  • orange Ulcerative Colitis

Anal Glands

  • purple Crohn's Disease
  • orange Ulcerative Colitis

Anal Crypts

  • purple Crohn's Disease
  • orange Ulcerative Colitis

Anal Canal and Dentate Line

  • purple Crohn's Disease
  • orange Ulcerative Colitis