Thyroid Gland Anatomy
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Questions and Answers

Where is the thyroid gland situated?

  • In the thoracic cavity
  • Superior portion of the neck
  • Anterior portion of the neck (correct)
  • Posterior portion of the neck

    • What connects the two lateral lobes of the thyroid gland?

  • Cricoid cartilage
  • Trachea
  • Hyoid bone
  • Isthmus (correct)

    • From where does the thyroid gland develop?

  • Parathyroid gland
  • Pineal gland
  • Thymus gland
  • Ultimobranchial body (correct)

    • What is the active form of T4?

    <p>T3 (Triiodothyronine)</p> Signup and view all the answers

    Which hormone is secreted from the medullary C cells in the thyroid gland?

    <p>Calcitonin</p> Signup and view all the answers

    What is the function of Calcitonin secreted from the thyroid gland?

    <p>Regulating serum calcium and phosphorus levels and skeletal remodeling</p> Signup and view all the answers

    What is the half-life of T3, the active form of T4?

    <p>1 day</p> Signup and view all the answers

    Where are the parathyroid glands located in relation to the thyroid gland?

    <p>Embedded in the thyroid gland</p> Signup and view all the answers

    From where does the thyroid gland develop?

    <p>Thyroglossal duct and ultimobranchial body</p> Signup and view all the answers

    What controls blood levels of T4 and T3 through a feedback mechanism?

    <p>Hypothalamic-pituitary-thyroid axis</p> Signup and view all the answers

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