This video briefly describes the process of spermatogensis and development of the sperm. Watch this video for a quick overview. 0:01 spermatogensis 0:06 sperm 0:13 magnified view of testis 0:33 leydig cell 0:39 seminiferous tubules 1:45 process of spermatogensis 3:33multiplication phase 3:41 growth phase 3:50 maturation process 3:55 spermeogenesis