What type of tissue is situated in the lining of the urinary bladder and urethra where stretching occurs?

The tissue situated in the lining of the urinary bladder and urethra, where stretching occurs, is called transitional epithelium. This specialized type of epithelial tissue is capable of expanding and contracting, allowing it to accommodate varying volumes of urine. It features cells that can change shape, typically appearing cuboidal when the bladder is empty and more flattened when it is full. This adaptability is crucial for the bladder's function in storing urine.