Cutting the sympathetic nerves to the bladder may cause

A. False It may cause increased frequency of micturition.

B. True Sympathetic activity tends to raise sphincter tone.

C. False This sphincter is supplied by somatic nerves.

D. True Afferent pain fibres run with the sympathetic nerves.

E. True Sympathetic fibres are necessary for closure of the internal sphincter of the blad-der during ejaculation to prevent reflux of seminal fluid.