This organ descends to the pelvic floor after childhood.
Friable fibrin deposits on its inner mucosa called Hunner lesions are seen in interstitial inflammation of this organ. This organ's most common cancer, which typically metastasizes via the internal iliac lymph nodes and can be assayed with the NMP22 tumor marker, is transitional cell carcinoma. Trapping of contrast material by a papillary tumor of this organ can generate a radiographic filling defect called the "stipple sign". One part of this organ remains open in Shy-Drager syndrome. Suprapontine lesions can cause hyperreflexia of its (*) detrusor muscle, and this organ's apex is connected to the abdominal wall by the median umbilical ligament. Botox injections into the trigone of this organ can be used in place of anticholinergics to treat urge incontinence, which occurs when this organ relaxes prematurely. This organ descends to the pelvic floor after childhood. For 10 points, name this part of the urogenital tract whose main function is to store urine.
Friable fibrin deposits on its inner mucosa called Hunner lesions are seen in interstitial inflammation of this organ.
bladder [accept interstitial cystitis before "organ"]