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Fig. 3. Histological sections of testes from birth to adulthood. LC: Leydig cells; SC: Sertoli cells; PG: Primordial germ cells; SG: Spermatogonia; PS: Primary spermatocytes; SS: Secondary spermatocytes; SPZ: Spermatozoa. (A) 0.1yr. (B) 2.5yr. (C) 3yr. (D) 3.5yr. (E) 4.5yr. (F) 6yr. (G) 8yr. (H) 13yr. Scale bar = 50 μm.
