By: Bailey Daniels and James Gainer 7 th 1-12-14 THYROID GLAND
Dec 22, 2015
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
AFFECTS OF HORMONES
• Instruct the tissues of the body to produce proteins and increase the oxygen used by the cells (Regulates Metabolism).
HOMEOSTASIS
• Regulates metabolism and the calcium levels in the body• They control how
much energy goes to the cell
FEEDBACK AND ANTAGONISTIC HORMONES
• Hormone secretion in the thyroid is applied by negative feedback• Calcitonin is an example of
a antagonistic hormone.
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.
INHIBITING HORMONES
• Somatostatin is a growth hormone-inhibiting hormone
• Inhibit the release of Growth Hormones
• It inhibits the release of thyroid-stimulating hormones (TSH)
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
o Feeling tired, weak, or depressed
o Modest weight gain
o Cold Intolerance
o Dry skin
o Cretinism
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
o Insomnia
o Weight Loss
o Exophthalmos
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)
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