Seminal Fluid or Semen:
A collection of secretions from the seminal vesicles, prostate gland and cowper’s gland and sperms from testes is known as seminal fluid or semen. It is a milky and viscous mixture having the pH 7.35 to 7.5.

About 3-4 ml semen is ejaculated at one time which contains 200-300 million sperms but out of which atleast 60% sperms must have normal shape and size and at least 40% of them must show vigorous motility for normal fertility. Semen also contains fructose, fibrinogen, proffbrinosin, calcium bicarbonate and mucous.

Functions of Mole Reproductive System:

1. Formation of sperms by germinal epithelial cells of . seminiferous tubules by spermatogenesis.
2. Production of testosterone hormone and other androgens to maintain it in functional state and develop male secondary characters.
3. Transfer of sperm by penis into the vaginal tract of female during copulation