Illustration from Scientific Research

Schematic diagram of testis. Spermatogenesis begins at top left with the stems cells and ends where mature sperm exit the terminal duct (TD). CSC cyst stem cell, GSC germline stem cell, SG spermatogonium, SC spermatocyte, SP spermatid, CB cystic bulge, TCC tail cyst cell, HCC head cyst cell, GB gonialblast, NB nuclear bundle, TE terminal epithelium.

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