Assertion: epithelium's cell | /r/HasProperty | spermatogonia
Facets:
Source sentences:
text: Males followed a seasonal testicular cycle (Table 1) in which three stages were represented: (1) Regression (non-reproductive) in which the germinal epithelium is exhausted and the predominant cells are Sertoli cells and spermatogonia; (2) Recrudescence (recovery) characterized by renewal of the germinal epithelium for the next period of sperm formation; primary and secondary spermatocytes are the predominant cells; (3) Spermiogenesis (sperm production) in which the seminiferous tubules are lined by clusters of spermatozoa and metamorphosing spermatids; the epididymides are packed with sperm.