Page 7 - SONO 260 Chapter 12 The Neck

• As a result of the thyroid-stimulating hormone was released by the pituitary gland, the thyroid, releases the hormones contained within its cells. These hormones are thyroxine (T4), triiodothyronine (T3), and calcitonin.
• The thyroid utilizes iodine to manufacture these hormones.
• Iodine is found in some vegetables, seafood, and within in many processed foods that contain iodized salt.
• Accordingly, the subscripted numbers “3” and “4” found
in the thyroid hormones denote the number of iodine
atoms contained within each hormone.
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