Endocrine Function of Testes(cont nhibin a glycoprotein with a molecular weight of 31.000-32.000 Secreted byby sertoil cells in testis potent inhibitory effect on FSH secretion by pituitary gland slightly inhibitory in GnRH secretionEndocrine Function of Testes (cont.) • Inhibin – a glycoprotein with a molecular weight of 31,000-32,000 – Secreted by by Sertoil cells in testis – potent inhibitory effect on FSH secretion by pituitary gland. – slightly inhibitory in GnRH secretion