Labels:daily | hakham OCR: LINING OF THE BLADDER HE BL ADDER WALL consists mostly of thick layers 0 smooth muscle that you cannot control. These muscles contract when your bladder full, pushing urine out of the bladder into the urethra (the passageway leading out of vour body) The inner lining of your bladder iS made of sheets of cells called epithelium. hen the bladder empty, shrinks, and the epithelium forms folds, or rugae W hen the bladder fills. expands and the rugae disappear. passagew epithe lium
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