FEED BACK MECHANISM
The feed back mechanism is a controlling system in the human body which controls the product of the hormones by the ductless glands in the human body, just as the thyroid gland produce the hormone which is called thyroxine, whose production by the thyroid is checked by the pituitary gland based in the brain, and like the ovary a gland of female which produce the hormone namely estrogen by which the process of a new child take place in the female after the cohabit ion with the male, the production of said estrogen is checked out by the pituitary gland, and this all system take place by the circulatory system in the human body