人类繁衍种族、繁殖后代的任务是由生殖系统来完成的,男性和女性的生殖系统在生理解剖上是各不相同的。下面我们来谈谈男性的生殖器官。男性生殖器官包括内生殖器和外生殖器。内生殖器由生殖腺睾丸、输送管道附睾、输精管、射精管、尿道和附属腺体精囊腺、前列腺、尿道球腺组成。其中睾丸是 Human reproduction of ethnic groups, the task of breeding offspring is done by the reproductive system, male and female reproductive system in the physiological anatomy are different. Now let’s talk about male genital organs. Male genital organs include internal and external genitalia. Internal genital gonad testis, duct epididymis, vas deferens, ejaculatory duct, urethral and accessory glands seminal vesicle, prostate, urethral bulb. Which testicles are