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A member asked:
Can you tell me how the body maintain thyroid hormone levels?
A doctor has provided 1 answer
H-P-T axis: Hi. It's an interplay in the hypothalamic-pituitary-thyroid (H-P-T) axis. The hypothalamus secretes thyrotropin-releasing factor (TRF), which stimulates the pituitary to release thyroid-stimulating hormone (TSH), which stimulates the thyroid gland to take up iodine, organify, make, and release thyroid hormones (mostly T4, but a little T3 (liothyronine) too). The thyroid hormones feed back to suppress TRF & TSH.
Answered 7/15/2014
3.9k views
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