I. Introduction
II. Gastrointestinal Tract Dysfunction: Overview
1. Esophagus
2. Stomach
3. Small Intestine
4. Colon
III. Etiology of Gastrointestinal Motility Disorders
1. Chronic Intestinal Pseudo-Obstruction
2. Esophageal Disorders
3. Stomach and Small Intestine Disorders
4. Disorders of the Large Intestines
IV. Endocrine Disorders and GI Dysfunction
1. Diabetic Gastroparesis
2. Thyroid Disorders
3. Adrenal Gland Disorders
V. Summary