Inhibin hormone released by the highlighted structure inhibits the secretion of FSH only.
<h3>What is inhibin hormone?</h3>
A protein called inhibin is secreted by the granulosa cells in women and the Sertoli cells in men.
It decreases the amount of LH-releasing hormone in the hypothalamus and prevents the pituitary gland from producing and releasing follicle-stimulating hormone.
Inhibin is a factor in the feedback control of FSH secretion in both males and females going through puberty.
Follistatin suppresses FSH-subunit expression like inhibin, whereas activin enhances it, which in turn influences FSH production and secretion.
Inhibin A is secreted by the corpora lutea and dominant ovarian follicles in women, which helps to explain why levels are so high during the late follicular and luteal stages.
During the late luteal and early follicular phases of the menstrual cycle, inhibin B is reciprocally raised.
