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Briefly describe how thyroid hormones is made in the thyroid gland. What are the necessary components?
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- Give two examples of feedback control of hormone activity.Take thyroid hormones as an example of hormones and their properties. Thyroid hormone is highly bound to proteins in the blood. What is the benefit of such protein binding? What effect does protein binding have on the activity of the hormone? Name a gland other than the thyroid gland that is involved in regulating thyroid hormone production?Which cells in the thyroid gland produce calcitonin? which mineral is regulated by calcitonin? List three processes in the body in which this mineral is involved.
- What are the two hormones commonly referred to as "thyroid hormone "?Describe their general functions.Which one of the following statements about T3 is FALSE? 1) It is thought to be the most active thyroid hormone. 2) It may be elevated to a greater extent than T4 in hyperthyroidism. 3) It is not bound to serum proteins. 4) It is commonly decreased in patients with nonthyroidal illness. no references, just homework.How are thyroid hormones transportes in the bloodstream ? Why ? Do the hormones enter the target cell directly ? Describe briefly the sequence of events when thyroid hormones bind to their receptors.
- How are thyroid hormones transported in the bloodstream? Why? Do the hormones enter the target cell directly? Describe the sequence of events when thyroid hormones bind to their ?Explain the formation of the thyroid hormones. What factors control the secretion of parathyroid hormones?Thyroid hormones are important in regulating the body’s basal metabolic rate. Thyroid hormones are lipid-soluble and have a long half-life.What are the advantages and disadvantages of a long half-life for thyroidhormones, compared with a short half-life?
- How are thyroid hormones transported in the bloodstream? Why? Do the hormones enter the target cell directly? Describe the sequence of events when thyroid hormones bind to their receptors.Another general principle of physiology is that structure is a determinant of—and has coevolved with—function. The structure of the thyroid gland is very unlike other endocrine glands. How is the structure of this gland related to its function?What are most of the physiological effects of thyroid hormones caused by?