Home > Patients & Visitors > Health Library > Thyroid Hormone Production and Function
thyroid gland uses iodine from food to make two
thyroid hormones: triiodothyronine (T3) and thyroxine (T4). It also stores
these thyroid hormones and releases them as they are needed. The
hypothalamus and the
pituitary gland, which are located in the brain, help
control the thyroid gland. The hypothalamus releases thyrotropin-releasing
hormone (TRH), which stimulates the pituitary gland to release
thyroid-stimulating hormone (TSH). When the hypothalamus and pituitary are
working normally, they sense when:
Disease or tumors of the pituitary gland can affect this
See a picture of
thyroid hormone production.
Thyroid hormones affect every cell and all the organs of the body.
ByHealthwise StaffPrimary Medical ReviewerKathleen Romito, MD - Family MedicineSpecialist Medical ReviewerMatthew I. Kim, MD - Endocrinology
Current as ofNovember 20, 2015
Current as of:
November 20, 2015
Kathleen Romito, MD - Family Medicine & Matthew I. Kim, MD - Endocrinology
To learn more about Healthwise, visit Healthwise.org.
© 1995-2016 Healthwise, Incorporated. Healthwise, Healthwise for every health decision, and the Healthwise logo are trademarks of Healthwise, Incorporated.
Our interactive Decision Points guide you through making key health decisions by combining medical information with your personal information.
You'll find Decision Points to help you answer questions about:
Get started learning more about your health!
Our Interactive Tools can help you make smart decisions for a healthier life. You'll find personal calculators and tools for health and fitness, lifestyle checkups and pregnancy.
Feeling under the weather?
Use our interactive symptom checker to evaluate your symptoms and determine appropriate action or treatment.