Endocrinology
Figures published in First Aid for the USMLE Step 1, 2015 edition, pages 572 and 595.
©2014 Vikas Bhushan, MD and Tao Le, M
![](https://freight.cargo.site/t/original/i/8dd0c3b25bad51c36cd69974e49cb7a848f082530106278e60d1eff85e15bf0d/repro_hormones_550.png)
Role of reproductive hormones
![Spermatogenesis](https://freight.cargo.site/t/original/i/d4c8da8d20b42d4a77f69f020533b21878074ac0a2f6204d097063b80f9ccb73/spermatogenesis_550.png)
Spermatogenesis
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