The flow of urine out of the urinary bladder to the urethra is controlled by which of the following?

Question

Quizplus · Accepted Answer

The flow of urine out of the urinary bladder to the urethra is controlled by the sphincters, which are muscle rings that can contract or relax to allow or restrict the passage of urine. The ureters transport urine from the kidneys to the bladder, but they do not control the flow of urine out of the bladder. Electrolytes and hormones may impact the production and storage of urine, but they do not control the actual flow out of the bladder.

The Flow of Urine Out of the Urinary Bladder to the Urethra