The seminal vesicles and prostate gland make a whitish fluid called seminal fluid, which mixes with sperm to form semen when a male is sexually stimulated. The penis, which usually hangs limp, becomes hard when a male is sexually excited. That that
the seman arrive first at the ampulla just above the prostate gland, from the seminal vesticles located next to the ampulla are added. the seminal fluid is then propelled forward through ejaculatory ducts toward the uethra. as it passes through the prostate gland a milky fluid is added
