MICROANATOMY

Detailed explanation-1: -The sperm move into the epididymis, where they complete their development. The sperm then move to the vas deferens (VAS DEF-uh-runz), or sperm duct. 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.

Detailed explanation-2: -Sperm may also cooperate. This seems odd in a situation that allows only one sperm to fertilize an egg, but isolated sperm are not efficient swimmers. An aggregate of a few sperm (5–10) swims together-working cooperatively, the sperm swim faster and more directly to the egg.

Detailed explanation-3: -The sperm arrive first at the ampulla just above the prostate gland. Here, secretions from the seminal vesicle located next to the ampulla are added. Next, the seminal fluid is propelled forward through the ejaculatory ducts toward the urethra. As it passes the prostate gland, a milky fluid is added to make semen.