testosterone ( t ) replacement suppresses the postcastraction hypersection of follicle-stimulating hormone ( fsh ) in monkeys with an intact central nervous system ( cns ) , but not in hypothalamic-lesioned animals in which the pituitary-testicular axis is driven by an i.v . infusion of gonadotropin-releasing hormone ( gnrh ) .
C0020663
hypothalamic
C1521753
i