Which of the following happens when the bladder of an infant becomes full of urine
A)Stretch receptors in the bladder wall are inhibited.
B)The parasympathetic nerve supplying the bladder is inhibited, allowing the bladder to relax.
C)A motor neuron supplying the external urethral sphincter is stimulated, causing the sphincter to open.
D)A motor neuron supplying the external urethral sphincter is inhibited, allowing the sphincter to open.

Question

Quizplus · Accepted Answer

When the bladder of an infant becomes full of urine, a signal is sent to the sacral region of the spinal cord where a reflex action causes the motor neuron supplying the external urethral sphincter to be inhibited, allowing the sphincter to open and initiate urination.

Which of the Following Happens When the Bladder of an Infant