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hyperthyroidism |
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hyperthyroidism: see thyroid gland thyroid gland, endocrine gland, situated in the neck, that secretes hormones necessary for growth and proper metabolism. It consists of two lobes connected by a narrow segment called the isthmus. The lobes lie on either side of the trachea, the isthmus in front of it. ..... Click the link for more information. . hyperthyroidism [¦hī·pər′thī‚rȯid‚iz·əm] (medicine) The constellation of signs and symptoms caused by excessive thyroid hormone in the blood, either from exaggerated functional activity of the thyroid gland or from excessive administration of thyroid hormone, and manifested by thyroid enlargement, emaciation, sweating, tachycardia, exophthalmos, and tremor. Also known as exophthalmic goiter; Grave's disease; thyrotoxicosis; toxic goiter. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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| Physicians who have observed similar bands in human bones have interpreted them as signs of arrested bone growth and have proposed a number of possible causes, including scurvy, heavy metal poisoning, hyper-thyroidism and rickets. |
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