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Thyroid Hormones

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Summary

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Key Points

  • Thyroid Hormones
    • T3 = Triiodothyronine
    • T4 = Thyroxine
    • Origin: Thyroid
    • Pathway:
      • TRH from hypothalamus
      • TSH from anterior pituitary
      • Thyroid Hormones
    • Type: Tyrosine derivatives
      • Steroid-like
    • Trigger: TSH stimulation from anterior pituitary
    • Target: Whole body
      • Effect: Increases metabolic rate
        • Metabolic rate is often measured as the amount of energy of energy expended in one day