Which statement is NOT true of the urination reflex?
A)Voluntary control is provided by the external urethral sphincter.
B)As part of the reflex, the internal urethral sphincter contracts.
C)The effector of the reflex is the detrusor muscle of the urinary bladder.
D)This reflex is a spinal cord reflex.

Question

Quizplus · Accepted Answer

The internal urethral sphincter actually relaxes, not contracts, as part of the urination reflex to allow urine to flow from the bladder into the urethra.

Which Statement Is NOT True of the Urination Reflex