Gonadotropin-releasing hormone (GnRH) Inhibin

Müllerian inhibitory factor (MIF) Prolactin

Leydig cells of testes

Prostate Testes Testes Testes


Adenohypophysis Hypothalamus

Sertoli cells Sertoli cells


Steroid Hormones


Prostate Many

Peptide Hormones

Leydig cells

Sertoli cells

Maintenance of functional male reproductive system and secondary male sex characteristics See Table 12-3 Not known with certainty

Not known with certainty

Stimulate steroidogenesis and production of testosterone Secretion of androgen-binding protein

Hypothalamus-pituitary Feedback inhibition of FSH secretion

Miillerian duct In very early male fetus, MIF induces Miillerian duct regression (see Chapter 14)

Leydig cells Potentiates the actions of LH

pathway is apparently dominant. All of these reactions occur in the microsomal fraction of the cell.

In the liver, testosterone is converted to the two 17-keto compounds, androsterone and etiocholanolone



Testosterone 5a-Dihydrotestosterone 0 OH

Testosterone 5a-Dihydrotestosterone 0 OH

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Cure Tennis Elbow Without Surgery

Cure Tennis Elbow Without Surgery

Everything you wanted to know about. How To Cure Tennis Elbow. Are you an athlete who suffers from tennis elbow? Contrary to popular opinion, most people who suffer from tennis elbow do not even play tennis. They get this condition, which is a torn tendon in the elbow, from the strain of using the same motions with the arm, repeatedly. If you have tennis elbow, you understand how the pain can disrupt your day.

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