Spermatogenesis Formation of human sperm from primitive germ cell -conditions
T < body T (32 C), cryptorchidism- testes develop on abdominal cavity and migrate to the scrotum during fetal development (MIS); if incomplete testicular descent- sterility,
_ incidence of malignant tumors of undescended testes), after puberty higher T in the abdomen causes irreversible damage to the spermatogenic epithelium