GENERAL HISTOLOGY

Detailed explanation-1: -When the urinary bladder fills with urine, the bladder wall stretches to accommodate the increased volume. In the distended bladder, the urothelium reorganizes into two or three layers without any structural damage. Due to this transitional ability of the urothelium, it is also known as the transitional epithelium.

Detailed explanation-2: -The bladder is lined by epithelial cells that are somewhere in between the thick layers of squamous cells and the single layer of tall cells of glandular epithelia. Logically, these cells are called transitional cells because they represent a transition between these two disparate epithelial cell types.

Detailed explanation-3: -Stratified transitional epithelium lines the urinary bladder, allowing this organ to stretch then return to its original shape.