The system systematically displays the complete biological process of male germ cell development, covering the developmental path from spermatogonia through meiosis (the first division to form primary spermatocytes and the second division to form secondary spermatocytes) to the differentiation and maturation of sperm cells. Key anatomical parts such as testicular structures (seminiferous tubules, basement membrane, Sertoli cells, lumen), spermatic cord, epididymis and rete testis are also marked.
