title: Recent advances in the morphology, histochemistry, and biochemistry of steroid-synthesizing cellular sites in the testes of nonmammalian vertebrates.
mesh_terms: D000663:Amphibians; D000731:Androstanes / Q000096:biosynthesis*; D000818:Animals; D001717:Birds / Q000033:anatomy & histology; D002816:Chordata, Nonvertebrate; D004721:Endoplasmic Reticulum / Q000648:ultrastructure; D005399:Fishes; D006651:Histocytochemistry; D007985:Leydig Cells / Q000166:cytology / Q000378:metabolism; D008074:Lipoproteins / Q000032:analysis; D008297:Male; D008928:Mitochondria / Q000648:ultrastructure; D012104:Reptiles; D012621:Seasons; D012708:Sertoli Cells / Q000166:cytology / Q000378:metabolism; D013045:Species Specificity; D013094:Spermatozoa / Q000378:metabolism; D013737:Testis / Q000166:cytology* / Q000378:metabolism; D014714:Vertebrates / Q000033:anatomy & histology*
chemical_list: D000731:Androstanes; D008074:Lipoproteins