Stratified transitional epithelium:
  • This epithelium has several layers of epithelial cells. It is found lining surfaces of organs subjected to stretch, such as the bladder, the ureters and part of the urethra.
  • Its allows for distension of the urinary organ.
  • Because the shape of the cells at the surface layer is transitory (changes depending on the degree of stretching of the organ), this epithelium is called transitional. It will look like a stratified squamous epithelium if it is stretched or a stratified cuboidal epithelium if it is unstretched.