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  • Hey Kazuha! Are you busy? Can you help me study?
  • Sure!why not?
  • Do you know what is the first phase of spermatogenesis?
  • It’s Spermatocytogenesis. Stem cells divide mitotically during spermatocytogenesis to replenish themselves and create cells that start the process of differentiating.
  • The second phase of spermatogenesis is Meiosis. Meiosis begins with a cell called a primary spermatocyte. A secondary spermatocyte, a haploid cell, is created at the ending of the first meiotic division. This haploid cell must go through another meiotic cell division. Another meiotic cell division must occur in this haploid cell. A spermatid is the cell that emerges from meiosis at its end. It is referred to as a sperm cell once it enters the tubule lumen and develops a flagellum. Each primary spermatocyte that undergoes meiosis produces four sperm.
  • How about next phases of spermatogenesis. Can you tell me more about it?
  • The last phase of spermatogenesis is Spermiogenesis. Spermiogenesis is the process by which haploid round spermatids complete an extraordinary series of events to become streamlined spermatozoa capable of motility.
  • Okay Noted. Now let’s proceed to the next phases of Spermatogenesis.
  • I would like you to remember that spermatocytes are the only cells in males that undergo meiosis.
  • Spermiogenesis is followed by spermiation. In the epididymis, where they develop into fully-differentiated motile spermatozoa, the spermatozoa are discharged from the seminiferous tubules. These develop into mature spermatozoa also known as sperm cells. As a result, the primary spermatocyte divides into two secondary spermatocytes, which then divide into four spermatozoa and four haploid cells.
  • Oh! I remember that the olgi phase, cap phase, tail phase, and maturation phase are the four main stages of spermiogenesis.
  • That's right,Correct
  • No problem. Glad I was able to help. Just tell me if you have some questions. Good luck on your exams tomorrow!
  • Wonderful! Thank you! I appreciate your help so much. I think I am ready for our exams tomorrow thanks to you.
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