The detrusor muscle mass comprises the wall from the urinary bladder. It kinds The interior urethral sphincter around the neck of the bladder. The detrusor muscle mass contracts round the ureteric orifices once the bladder contracts in order to protect against vesicoureteral reflux (backflow of urine in the ureters). Urologists: https://myhealthyrhino.com/prostadine-the-natural-supplement-you-need/