Which of the following controls the passage of urine through the urethra?

Question

Quizplus · Accepted Answer

The internal and external sphincters control the passage of urine through the urethra. The internal sphincter is an involuntary muscle that stays contracted to prevent urine leakage, while the external sphincter is a voluntary muscle that can be consciously contracted to hold urine or relaxed to allow urination. The other options listed do not contribute to the control of urine flow through the urethra.

Which of the Following Controls the Passage of Urine Through