Question

Cutting the sympathetic nerves to the bladder may cause 

A. Difficulty in emptying the bladder. 

B. Loss of tone in the internal sphincter of the bladder. 

C. Loss of tone in the external sphincter of the bladder. 

D. Loss of pain sensation in the bladder. 

E. Infertility in the male.

Answer 1

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 bladder during ejaculation to prevent reflux of seminal fluid.