Yes. As part of prostate removal surgery, the duct that brings sperm to the prostate is rerouted to deliver to the bladder.
Sperm/ more likely Semen (there is a difference) cannot leak from the bladder, you may be having a wet dream, which is not harmful and perfectly normal.
Prostate
There is no gland that encircles the bladder. The prostate gland sits at the base of the bladder; maybe that is what you were referring to.
Urethra
Prostate gland
The prostate gland enlarges to block urine from leaving the bladder when sperm is ejaculated. This is because the prostate surrounds the urethra, the tube that carries urine from the bladder out of the body, and contracts during ejaculation to prevent the mixing of semen and urine.
After sperm is produced, it travels through the testes through sperm ducts that circle the bladder, a gland called the seminal vesicle provides sperm with a fluid. This fluid supplies the sperm with an energy source and helps them move.
A urethral opening is the opening of the end of the penis to comes out the sperm cell and the bladder. =)
While emptying the bladder, the last step is the emptying of the bladder via the urethra. The urethra sends urine out of the bladder while preventing the back-flow of the urine using a back-flow valve mechanism.
The ureter carries urine and in male sperm (that is why slightly larger) from the kidney to the urinary bladder
The ureters carry urine from the kidneys to the bladder.The urethra carries urine from the bladder to outside of the body.
No. They both leave through the URETHRA which is the tube in the middle of the penis. Higher up in the urinary system there are some other tubes which connect the kidneys with the bladder. These are called ureters. No sperm should be up there. Sometimes sperm enters the bladder in what is called a retrograde ejaculation but still it should not really get as far as the ureters. Bottom line: you've confused urethra with ureter.