PATHOLOGY

Detailed explanation-1: -Your bladder is made up of layers: The first layer is the lining on the inside of your bladder. It is called the transitional epithelium or urothelium. The second layer is a thin layer of connective tissue called the lamina propria. The third layer is muscle tissue called the muscularis propria.

Detailed explanation-2: -Inside, the posterior wall of the urinary bladder has a smooth triangular area that doesn’t contain rugae-even if the bladder is empty-called the trigone of the urinary bladder.

Detailed explanation-3: -The walls of the bladder have a series of ridges, thick mucosal folds known as rugae that allow for the expansion of the bladder.