| Jejumun | Ileum |
| 1. Occupies upper and left part of the intestinal area. | 1. Present in lower and right parts of intestinal area. |
| 2. Walls of jejunum are thicker and more vascular. | 2. Walls of ileum are thinner and less vascular. |
| 3. Villi are large and abundant in jejunum. | 3. Villi are shorter and less in ileum. |
| 4. Lumen is wider and often empty. | 4. Lumen of ileum is narrower and loaded. |
