Define arrow. arrow synonyms, arrow pronunciation, arrow translation, English dictionary definition of arrow. n. 1. A missile having a straight thin shaft with a pointed head at one end and often flight-stabilizing vanes at the other, meant to be shot from a bow.
FSH stimulates the growth and recruitment of immature ovarian follicles in the ovary. In early (small) antral follicles, FSH is the major survival factor that rescues the small antral follicles (2â5 mm in diameter for humans) from apoptosis (programmed death of the somatic cells of the follicle and oocyte).
Follicle-stimulating hormone (FSH). FSH is a protein made by the brain that stimulates ovulation. If your ovaries are beyond menopause, they no longer respond to FSH, and your brain reacts by sending out even more of these hormones. If your periods have stopped for some time, a persistently high level of FSH (over 40 milli-international units per milliliter, or mIU/mL) indicates that menopause may be permanent.