Ulcer
This section is about
Diseases
and Disorders of the Digestive System.
To read about other diseases, disorders, or conditions of the digestive
system, use the links on the left-side of this page.
See also glossary pages about
Tissues
and Organs of the
Digestive System.
An ulcer is a break in the skin that extends through all its layers, or a break in the membrane lining the alimentary tract that fails to heal and may also be inflamed.
There are several different types of ulcers including:
(See pages about specific types of ulcers using the links above.)
More about the Digestive System:
This section includes pages about:
- Introduction to the Digestive System
- Terminology about Digestion
- Passage through the alimentary tract
- Component Parts of the Digestive System, incl. Teeth, Stomach, Liver, Small Intestine, Large Intestine
- Chemical Processes in the Digestive System (introductory level)
- Diseases and Disorders of the Digestive System
For further information see also our pages of books about gastroenterology.
- The digestive system (introduction)
- Digestive System Terminology
- Main Stages of the Digestive Process
- Transit through the Alimentary Canal
- Absorption Sites
- Structures of the mouth
- Teeth - as part of the digestive system
- Stomach
- Liver
- Small Intestine
- Large Intestine
- Defecation
- Digestive System Diseases & Disorders
