The injected latex method was used to study the anatomy of the intramural segment in ten uteri. Another ten uteri were used for its histological evaluation. The intramural segment had an S-shaped course with double curves. Its length ranged between 0.9 and 1.7 cm. The lining epithelium showed variations at different levels with increase in cell density and number of cilia as the isthmus was approached. At the uterotubal junction, there were mucosal folds of endosalpinx directed towards the tubal lumen.

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