The study was performed in 228 unformalinized human cadavers of both sexes and of different ages. The diameter of the ileum at the opening, its diameter 3 cm from the opening and the distance between the opening of the ileum and the opening of the vermiform appendix were measured. The findings are summarized in tables and diagrams. The position and angle of the opening of the ileum into the caecum are described. We found that the diameter of the ileum at the opening increased, depending on sex, two or three-fold while over the age of 20 years no increase in diameter was observed. The diameter 3 cm from the opening of the ileum was found in individuals older than 20 years. The distance from the opening of the ileum to the opening of the appendix was longer in females. The distance was related to the diameter of the ileum at the opening and the position of the opening of the appendix. The position of the ileum at the opening was found to be highly variable. In the elederly the mean diameter of the ileum at the opening was obviously smaller. The measurements were carried out using a slide caliper with vernier and protractor.

Keywords: Ileum, position variability, dimensions