The micturition reflex begins to function when
A) the stretch receptors have provided adequate stimulation to the sympathetic motor neurons.
B) the stretch receptors have provided maximum stimulation to the parasympathetic motor neurons.
C) the stretch receptors have provided adequate stimulation to the parasympathetic motor neurons.
D) the stretch receptors have provided maximum stimulation to the sympathetic motor neurons.
E) the stretch receptors are initially distorted.

Question

Quizplus · Accepted Answer

The micturition reflex begins to function when the stretch receptors have provided adequate stimulation to the parasympathetic motor neurons. This stimulates the contraction of the detrusor muscle and relaxation of the internal urethral sphincter, leading to the voiding of urine. The sympathetic motor neurons play a role in inhibiting this reflex, while maximum stimulation of the parasympathetic motor neurons would lead to an overactive bladder and involuntary urination.

The Micturition Reflex Begins to Function When