Fig.13 The photomicrograph of ureter mucosa. The
transitional epithelium (Ep) and its supporting connective
tissue (CT) constitute the mucosa. The surface cells of the
transitional epithelium exhibit a rounded or dome-shaped
profile, and some are binucleate (arrow). The basal cells are
the smallest. The intermediate cells appear to consist of
several layers and are composed of cells larger in size than
the basal cells but smaller than the surface cells.