During the micturition reflex,
A) stimulation of stretch receptors in the bladder wall sends impulses to the sacral cord.
B) parasympathetic motor neurons that control the detrusor muscle become active.
C) the internal sphincter is consciously relaxed.
D) A, B, and C
E) A and B only

Question

Quizplus · Accepted Answer

The micturition reflex involves the activation of stretch receptors in the bladder wall, which send signals to the sacral spinal cord (A). This reflex also activates parasympathetic neurons that stimulate the detrusor muscle to contract (B). However, the internal sphincter is not consciously relaxed; it is controlled involuntarily by the autonomic nervous system.

During the Micturition Reflex