Fig. 12. Testicular tubule showing normal spermatogenesis. × 230.
Fig. 13. Testicular tubule showing no evidence of mitosis. × 230.
Fig. 14. Testicular tubule. The spermatogenic epithelium is
beginning to degenerate and become cast off into the
lumen. × 230.
Fig. 15. Testicular tubule, showing almost total exfoliation of the
spermatogenic epithelium. × 230.