Bladder

The somewhat ovoid receptacle for the urine which, when empty, lies deep in the pelvis, and when full rises a varying extent above the pubis, having a normal capacity in males of ab. one pint but somewhat le in females. It receives the urine from the kidneys, discharges it through the urethra, and consists of a layer of involuntary muscular fibers, outside which is the peritoneum and within a layer of mucous membrane.