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   1. Definition of Spermatogenesis Spermatogenesis is the process of biological in which the mature of gametes produce of the human It occurs in the Male testis  Approximately 200–300 million sperms are produced daily in adult males. Initially formed sperms are immature and later undergo maturation. --- 2. Site of Spermatogenesis Spermatogenesis takes place in the seminiferous tubules of the testes. Each seminiferous tubule consists of: An outer wall A central lumen The Wall of the seminiferous tubules aur main part of the produce human sperm --- 3. Seminiferous Tubule Wall The wall contains different types of cells, including: Primary germ cells Sertoli cells Primary germ cells undergo several stages of division to form immature sperms called spermatids. Sertoli cells provide nutrition and support to developing sperms. --- 4. Phases of Spermatogenesis Spermatogenesis is divided into two main phases: A. Spermatocytogenesis In this phase, one germ cell divides to form fou...