The emptying reflex causes the
A) contracting of the muscles of the bladder
B) relaxation of the internal sphincter
C) relaxation of the external sphincter
D) both a and b above

Question

Quizplus · Accepted Answer

The emptying reflex causes both the contracting of the muscles of the bladder and the relaxation of the internal sphincter. This allows urine to flow out of the bladder and into the urethra. The external sphincter, however, is under voluntary control and must be consciously relaxed in order for urine to be expelled from the body.

The Emptying Reflex Causes the