title: Functional morphology of the testis.
mesh_terms: D000818:Animals; D001814:Blood-Testis Barrier; D004721:Endoplasmic Reticulum / Q000648:ultrastructure; D000882:Haplorhini; D008297:Male; D012708:Sertoli Cells / Q000502:physiology; D013087:Spermatids / Q000648:ultrastructure; D013090:Spermatocytes / Q000648:ultrastructure; D013094:Spermatozoa / Q000648:ultrastructure*; D013737:Testis / Q000502:physiology / Q000648:ultrastructure*