The male =genital organs= (Organa genitalia masculina) are: (1) The two
=testicles=, the essential reproductive glands, with their coverings and
appendages; (2) the =vasa deferentia=, the ducts of the testicles; (3)
the =vesiculæ seminales=; (4) the =prostate=, a musculo-glandular organ;
(5) the two =bulbo-urethral= (or Cowper’s) =glands=; (6) the male
=urethra=, a canal which transmits the generative and urinary
secretions; (7) the =penis=, the male copulatory organ. The vesiculæ
seminales, the prostate, and the bulbo-urethral glands discharge their
secretions into the urethra, where they mix with the seminal fluid
secreted by the testicles; hence they are often termed the accessory
sexual glands.