And then they travel into the urethra where they mix with the fluid that is produced by the prostate gland and the bulba urethral gland. And finally that forms the semen. And the semen basically exits the penis and eventually enters the vaginal cavity. Now let's move on to the female reproductive organ. So let's focus on the following diagram. So we have the ovary and each female contains two ovaries just like the male contains two testes.