Transitional Epithelium


? – The layer to look at. This is the tissue in question.


  • Epithelial tissue is classified based on the shape of the cells at the apical surface and the number of layers of cells.
  • This tissue doesn’t fit the normal rules governing the naming of epithelial tissue.
  • It is called transitional because its appearance changes as it is stretched. The cells slide over one another to maintain the membrane.


  • Stretches to allow for expansion of the organs it lines.


  • Urinary bladder
  • Ureters