Zoology - Neural Control and Coordination Question with Solution | TestHub

When the set point of hypothalamus is disturbed by high temperature, it stimulates vasodilation and sweating while in low temperature there is vasoconstriction and shivering. Related Theory Feedback loops are used extensively to regulate secretion of hormones in the hypothalamic-pituitary axis. An important example of a negative feedback loop is seen in control of thyroid hormone secretion. The thyroid hormones thyroxine and triiodothyronine (" $T_4$ and $T_3$ ") are synthesized and secreted by thyroid glands and affect metabolism throughout the body.