What does the process of preventing micturition in spite of initiation of the reflex NOT involve?
A) the cerebral cortex
B) voluntary stimulation of the motor neuron supplying the external urethral sphincter
C) voluntary stimulation of the internal urethral sphincter via its parasympathetic nerve supply

Question

Quizplus · Accepted Answer

The process of preventing micturition in spite of initiation of the reflex does not involve voluntary stimulation of the internal urethral sphincter via its parasympathetic nerve supply. The reflex is controlled by the inhibitory activity of the cerebral cortex on the micturition reflex center in the brainstem, as well as the voluntary stimulation of the motor neuron supplying the external urethral sphincter. The internal urethral sphincter is controlled involuntarily by the sympathetic nervous system.

What Does the Process of Preventing Micturition in Spite of Initiation