The hypothalamus is a neuro-endocrine system, active in numerous processes. First, it conducts many slow actions, such as growth, by checking the pituitary gland, the main center of production of hormones.
The hypothalamus is the source of our emotions and basic needs of hunger, thirst and sex.
Very important is the fact that, by a pulsating secretion, controls the pituitary activity and thereby, the ovarian cycle, cycle whose peak is ovulation. A normal menstrual cycle would be impossible without some signs of ovarian steroid hormones, and without the involvement of brain centers.
The ovaries also influences, through a negative feedback mechanism, pulsed secretion of the hypothalamus and pituitary. This translates into the fact that hormones secreted by the hypothalamus and "processed" by the pituitary, come through blood to the ovaries, and they secrete estrogen and progesterone which are returning again to the brain.This, according to the needs of the body, limits or extends beyond the production of hormones.
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