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

2. Located below the Larynx Two lobes on each side of the windpipe
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. Regulates metabolism and the calcium levels in the body
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
publications/fact-sheet/graves-disease.html
y-health-guide/thyroid-gland/hashimotos-thyroiditis
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