What is the name of the involuntary sphincter that keeps the urethra closed when urine is not being passed?
A) external urethral sphincter
B) internal anal sphincter
C) internal urethral sphincter
D) ileocecal sphincter

Question

Quizplus · Accepted Answer

The involuntary sphincter that keeps the urethra closed when urine is not being passed is called the internal urethral sphincter. The external urethral sphincter is voluntary and can be consciously controlled, while the internal anal sphincter and ileocecal sphincter are located in different parts of the body and have different functions.

What Is the Name of the Involuntary Sphincter That Keeps