system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
Urothelium is absent in
assistant
The correct answer is  Transitional epithelium: In this type of multilayered epithelium all layers are made up of cuboidal, polygonal or round cells. The cells towards the surface of the epithelium are round. As transitional epithelium is confined to the urinary tract, it is also called urothelium. Location - Transitional epithelium is found in the renal pelvis and calyces, the ureter, the urinary bladder, and pa of the urethra. Because of this distribution it is also called urothelium. REF : Inderbir Singh's Textbook of Human Histology, Seventh edition, pg.no.,39,49.