The prostate is a walnut-sized cluster of tubulo-acinar glands that surrounds the male urethra's initial segment. A pseudostratified columnar epithelium with prostatic glandular cells lines the prostatic glands. As with other glandular organs, a layer of basal cells separates the prostatic glandular cells from the basement membrane and stroma. The prostate takes part in producing one-third of the fluid that makes up semen. The generated fluid serves as a protective and nourishing vehicle for sperm cells.