Question

Which layer of transitional tissue has rapid regeneration capacity?

• A. Superficial
• B. Desmosomes
• C. Basal
• D. None of the above

Answer 1

Answer: (D)

None of the above

• Transitional epithelium is a layer of cells that forms the mucosal lining of your ureters, a portion of your urethra, and your urinary bladder. These cells are called transitional because they can undergo a change in their shape and structure.
  
• It is made up of three types of cell layers: basal, intermediate, and superficial.
  
• The intermediate cell layer is highly proliferative and, therefore, provides for rapid cell regeneration in response to injury or infection of the organ or tube in which it resides.
  
• Superficial cell layer lines the lumen and it is the only fully differentiated epithelial tissue.
• The basal layer promotes the epithelial stem cells in order to provide constant renewal of the epithelium. The tonofilaments(presents in basal layer) play a role in the attachment of the basal layer to the basement membrane via desmosomes.[
  
• So, the correct answer is 'None of the above'.