Multiple choice

Which sphincters open in order to allow urination from the urinary bladder?

  1. Internal and external urethral sphincters.

  2. Urethral and renal sphincters.

  3. Renal and prostatic sphincters.

  4. Something else.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The internal and external urethral sphincters must both relax to allow urine to pass from the bladder out through the urethra during micturition.

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