Front Matter

Hypothalamus

Selective estrogen

receptor modulators

Estradiol

GnRH

GnIH

Aromatase

inhibitors

Aromatase

Te stosterone

(serum~500 ng/dl)

Te stosterone

(~500 ng/dl)

Leydig cells

Sertoli cells

FSH Inhibion B

Activin

LH

Testes

Anterior pituitary

Figure 7.16 Hypothalamic–pituitary–gonadal network. Source: Adapted from http://www.
maleinfertility.org/sites/default/files/styles/panopoly_image_original/public/new_hpg.
jpg?itok=J3X4BcOu and Pinterest: hypothalamic‐pituitary‐adrenal.