title: Seasonal changes in testicular structure and function and the effects of gonadotropins in the freshwater turtle, Chrysemys picta.
mesh_terms: D000064:Acclimatization; D000818:Animals; D004822:Epididymis / Q000187:drug effects / Q000502:physiology; D004847:Epithelial Cells; D004848:Epithelium / Q000187:drug effects / Q000502:physiology; D005640:Follicle Stimulating Hormone / Q000494:pharmacology*; D007016:Hypophysectomy; D007985:Leydig Cells / Q000187:drug effects / Q000502:physiology; D007986:Luteinizing Hormone / Q000494:pharmacology*; D008297:Male; D012621:Seasons; D012708:Sertoli Cells / Q000187:drug effects / Q000502:physiology; D013737:Testis / Q000166:cytology / Q000187:drug effects / Q000502:physiology*; D013739:Testosterone / Q000097:blood*; D014426:Turtles / Q000502:physiology*
chemical_list: D013739:Testosterone; D007986:Luteinizing Hormone; D005640:Follicle Stimulating Hormone