Attention! The site is for adults only (18+) If you are under 18, leave this site immediately (decide to leave).


» » Sperm production in males

5999 1
How Is Anatomy of

This process starts with the mitotic division of the stem cells located close to the basement membrane of the tubules. These cells are called spermatogonial stem cells. The mitotic division of these produces two types of cells. Type A cells replenish the stem cells, and type B cells differentiate into spermatocytes. The primary spermatocyte divides meiotically Meiosis I into two secondary spermatocytes; each secondary spermatocyte divides into two equal haploid spermatids by Meiosis II.

Comments:
  1. Yozshukus
    01.01.2018 on 15:09
    Nice ejaculation. No wonder though since you are looking at some nice juggs.
Do you like ?
bangthedj.com
Copyright © 2018.

DMCA: bangthedj.com is not responsible for the content on sites that is linked to. All img and videos on bangthedj.com are believed to be public domain. If you have a problem with a site that is linked to, or if you own copyrights on an image or video posted on bangthedj.com, please email: [email protected], and it will be removed.