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Electron micrograph of seminiferous tubules in May. Sertoli cell exhibits an elongated nucleus (A) and contains several large lipid droplets (B). SC, Sertoli cell; Pc, peritubular cell; Bm, basal membrane; SgB, spermatogonia type B; PS, primary spermatocytes; St, seminiferous tubules; Gc, germ cell; L, lipid droplets; N, nucleus. Scale bar = 10 μm (A) and 2 μm (B).
