What initiates the micturition reflex?
A) Parasympathetic efferent fibers stimulate the contraction of the detrusor muscle.
B) The external urethral sphincter relaxes.
C) Stretch receptors in the wall of the urinary bladder signal the sacral region of the spinal cord.
D) The internal urethral sphincter relaxes.

Question

Quizplus · Accepted Answer

The micturition reflex is initiated when stretch receptors in the wall of the urinary bladder signal the sacral region of the spinal cord, indicating that the bladder is full.

What Initiates the Micturition Reflex