title: Identification of the spermatogenic stages in living seminiferous tubules of man.
abstract: Parts of human seminiferous tubules containing late spermatids with condensed nuclei (Stage II) absorbed more transmitted light than did parts at other stages. Spermatogenic stages I, III, IV and VI were identifiable by phase-contrast microscopy.
mesh_terms: D002449:Cell Aggregation; D006801:Humans; D008297:Male; D008858:Microscopy, Phase-Contrast; D012670:Seminiferous Epithelium / Q000166:cytology*; D013091:Spermatogenesis; D013737:Testis / Q000166:cytology*; D014172:Transillumination