ejaculatory duct
The tail of the epididymus connects to the vas deferens through the epididymil duct.
The testicular nerve and the nerve to the cremaster innervate the vas deferens in the spermatic cord.
If the vas deferens is cut, then the sperm will not be able to travel from the testicles to the penis. As a result, if it is done bilaterally (on both sides) the male will be sterile. He will still...