Low thyroxine --%26gt; hypothalamus releases Thyrotropin Releasing Hormone (TRH) --%26gt; stimulates anterior lobe of pituitary to release Thyroid Stimulating Hormone (TSH)--%26gt; stimulates thyroid to release thyroxine --%26gt; turns off TRH %26amp;T SH release. Another example of negative feedback control.
Friday, August 6, 2010
Why is a heating system a model for the way that the thyroid gland is controlled by the pituitary gland?
Low temperature--%26gt;thermostat turns on heating--%26gt;warmer temperature--%26gt;thermostat turns off heating. An example of negative feedback control.
Low thyroxine --%26gt; hypothalamus releases Thyrotropin Releasing Hormone (TRH) --%26gt; stimulates anterior lobe of pituitary to release Thyroid Stimulating Hormone (TSH)--%26gt; stimulates thyroid to release thyroxine --%26gt; turns off TRH %26amp;T SH release. Another example of negative feedback control.eye color
Low thyroxine --%26gt; hypothalamus releases Thyrotropin Releasing Hormone (TRH) --%26gt; stimulates anterior lobe of pituitary to release Thyroid Stimulating Hormone (TSH)--%26gt; stimulates thyroid to release thyroxine --%26gt; turns off TRH %26amp;T SH release. Another example of negative feedback control.
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