Fig. 1 | Human spermatogenesis. Simplified schematic cross-section of a seminiferous tubule and surrounding interstitial space. Reported cell–cell signaling pathways involved in the process of spermatogenesis are also shown. Notably, germ cells are not isolated as depicted, but are instead interconnected by intercellular bridges, enabling cytoplasmic exchange of contents until subsequent post-meiotic stages, in which these intercellular bridges disappear.
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