Chapter 24, Problem 9RQ

Jim was standing at a urinal in a crowded public restroom, and a long line was forming behind him. He became anxious (a sympathetic response) and suddenly found he could not micturate no matter how hard he tried. Jim’s problem was that (a) his internal urethral sphincter was constricted and would not relax; (b) he had formed a kidney stone on the spot, and it was blocking his urethra; (c) his detrusor muscle was contracting too hard; (d) he almost certainly had a burst bladder.