Transitional epithelium in the wall of the bladder.
The endothelium that lines the urinary tract, extending from the renal calyces, through the ureters, to the urinary bladder.
Distention of the ureter with urine caused by stricture or obstruction.
The inner lining of the urinary tract encompasses several vital structures, including the renal pelvis, ureters, bladder, and urethra. This specialized lining, consisting of various types of cells and tissues, plays a crucial role in maintaining the integrity and functionality of the urinary system. The renal pelvis, located within the kidney, collects urine before it travels through the narrow tubes called ureters, which transport urine to the bladder. The bladder acts as a temporary storage reservoir for urine until it is voluntarily eliminated through the urethra, the final part of the urinary tract. Together, these interconnected components of the urinary tract ensure the proper elimination and management of urine, helping to maintain fluid balance and waste removal within the body.