The correct answer to fill in the blank is:
“Ejaculatory duct”
The ejaculatory duct is about two cm in length
and is formed when the seminal vesicle's duct merges with the vas
deferens. At this point, the ducts travel through the prostate
and drain into the colliculus seminalis's urethra. Essentially, the ejaculatory
duct is where the semen is ejaculated.
