Question

Upward movement of the thyroid gland is prevented due to?

• A. Berry ligament
• B. Pretracheal fascia
• C. Sternothyroid muscle
• D. Thyrohyoid membrane

Answer 1

The Correct Option is B

The upward movement of the thyroid gland is primarily restricted by the anatomical structure known as the Pretracheal fascia. The pretracheal fascia is a layer of connective tissue that encases both the thyroid gland and the trachea. It acts as a containment structure, holding the thyroid gland in position and preventing its excessive mobility. This function is crucial because it ensures that the gland remains in its proper anatomical location, facilitating its physiological roles and interactions with adjacent structures.
Other options:

• Berry ligament: These ligaments provide lateral support to the thyroid gland, connecting it to the cricoid cartilage, but do not restrict upward movement.
• Sternothyroid muscle: This muscle partially covers the thyroid gland but is not primarily responsible for restricting upward movement.
• Thyrohyoid membrane: This membrane stretches between the thyroid cartilage and hyoid bone, and does not influence thyroid gland movement.

In conclusion, the Pretracheal fascia is key in limiting the upward movement of the thyroid gland.