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Thyroid Gland

Thyroid Gland. By: Bailey Daniels and James Gainer 7 th 1-12-14. Location. Located below the Larynx Two lobes on each side of the windpipe . Hormones.

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Thyroid Gland

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  1. Thyroid Gland By: Bailey Daniels and James Gainer 7th 1-12-14

  2. Location • Located below the Larynx • Two lobes on each side of the windpipe

  3. Hormones • The hormones produced by the Thyroid are: Triiodothyronine (T3) and Tetraiodothyronine/Thyroxine (T4) are produced from iodine in the follicular cells. • Also produces the hormone Calcitonin in parafollicullar cells

  4. Affects of Hormones • Instruct the tissues of the body to produce proteins and increase the oxygen used by the cells (Regulates Metabolism).

  5. Homeostasis • Regulates metabolism and the calcium levels in the body • They control how much energy goes to the cell

  6. Feedback and Antagonistic Hormones • Hormone secretion in the thyroid is applied by negative feedback • Calcitonin is an example of a antagonistic hormone.

  7. Releasing Hormones • Thyrotropin-releasing hormone (TRH) causes the release of thyroid-stimulating hormone (TSH) • Causes the production of thyroxine • Deficiency of this hormone causes hypothyroidism.

  8. Inhibiting Hormones • Somatostatin is a growth hormone-inhibiting hormone • Inhibit the release of Growth Hormones • It inhibits the release of thyroid-stimulating hormones (TSH)

  9. Diseases • Hypothyroidism • Hashimoto’s Thyroiditis is the most common type of hypothyroidism • Autoimmune disease where the immune system attacks the thyroid. • Low hormone production • Lack of iodine in body • Causes many problems throughout the body • Symptoms • Feeling tired, weak, or depressed • Modest weight gain • Cold Intolerance • Dry skin • Cretinism

  10. Diseases Cont’D • Graves Disease • Causes immune system to make antibodies which act similarly to TSH, causing an overproduction of thyroid hormone • Called hyperthyroidism • Causes every function of the body to speed up such as heart rate and metabolism • Symptoms • Insomnia • Weight Loss • Exophthalmos

  11. Cures • Can be treated with hormone replacement therapy, relieves goiter (Hashimoto’s Disease) • Antithyroid meds which keep the thyroid from producing too much hormones, Radioactive iodine, and Surgery (Grave’s Disease)

  12. Sources • http://womenshealth.gov/publications/our-publications/fact-sheet/graves-disease.html • http://umm.edu/programs/diabetes/health/endocrinology-health-guide/thyroid-gland/hashimotos-thyroiditis • http://blog.naturalhealthyconcepts.com/wp-content/h9991537_001.jpg • http://maptest.rutgers.edu/drupal/?q=node/23 • http://www.healthline.com/human-body-maps/thyroid-gland

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