Anatomy of the Thyroid Gland
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Questions and Answers

What is the average weight of the thyroid gland in an adult?

  • 15-20 g
  • 25-30 g (correct)
  • 35-40 g
  • 45-50 g

    • Where is the isthmus of the thyroid gland located?

  • At the level of IV-V cartilage of the trachea
  • At the level of III-IV cartilage of the trachea
  • At the level of V-VI cartilage of the trachea
  • At the level of II-III cartilage of the trachea (correct)

    • Which part of the pharynx adheres to the posterolateral surface of the thyroid gland?

  • Laryngeal part (correct)
  • Nasopharynx
  • Oropharynx
  • Hypopharynx

    • What is the longitudinal size of each lobe of the thyroid gland?

    <p>6 cm</p> Signup and view all the answers

    In how many percentage of cases is a pyramidal lobe present in the thyroid gland?

    <p>30-35%</p> Signup and view all the answers

    Where is the lower pole of each lobe of the thyroid gland located?

    <p>At the level of V-VI cartilage of the trachea</p> Signup and view all the answers

    What is the main hormone produced by the thyroid gland?

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

    What is the function of thyrocalcitonin produced by the C-cells in the thyroid gland?

    <p>Decrease blood calcium levels</p> Signup and view all the answers

    What is the composition of the colloid present in the follicles of the thyroid gland?

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

    What is the primary function of triiodothyronine and thyroxine produced by the thyroid gland?

    <p>Enhance metabolic processes</p> Signup and view all the answers

    What are the consequences of hypofunction of the thyroid gland in childhood?

    <p>Development of myxedema or cretinism</p> Signup and view all the answers

    What is the role of iodothyroglobulin in the thyroid gland?

    <p>Aid in hormone synthesis</p> Signup and view all the answers

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