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.
Follicle-stimulating hormone (FSH) is a glycoprotein hormone found in humans and other animals. It is synthesized and secreted by gonadotropes of the anterior pituitary gland, and regulates the development, growth, pubertal maturation, and reproductive processes of the body. FSH and luteinizing hormone (LH) act synergistically in reproduction.
As the follicles grow they release a hormone called estradiol (estrogen). When the egg is almost mature, the rising estrogen level signals the brain to release a hormone called luteinizing hormone (LH). This hormone triggers ovulation, and it can be detected in a womanâs urine the day before she will ovulate.