Provided video discusses about the histology of the urinary bladder which includes its constituent layers, difference of layers in different parts of the bladder, changes in mucosa associated with baldder filling and some some clinical importance of observed histology. Timeline: 0:00 - Urinary baldder histological slide identification points 1:10 - Location of adventitia and serosa layers 2:14 - Folds in mucosa 3:22 - Urothelium 5:04 - Photomicrograph of transitional epithelium 6:27 - Plaque and interplaque regions 7:26 - Mucosa and lamina propria properties and detrusor muscle 8:32 - Clinical applications 9:30 - Summary