What is the thyroid gland?

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The thyroid gland is called the thyroid gland. Gray's Anatomy (1918) describes it as a butterfly-shaped endocrine gland with two lobes joined by a narrow isthmus.

Summary

The thyroid gland is called the thyroid gland. Gray's Anatomy (1918) describes it as a butterfly-shaped endocrine gland with two lobes joined by a narrow isthmus.

What it is

  • A butterfly-shaped endocrine gland with two lobes joined by a narrow isthmus.
  • Produces thyroid hormones and calcitonin.
  • Its hormones regulate the body's metabolic rate.

Where it is

  • In the front of the neck, just below the thyroid cartilage of the larynx.
  • Wraps around the upper part of the trachea.
  • The isthmus lies in front of the second to fourth tracheal rings.

Sources

According to Gray's Anatomy of the Human Body (1918, public domain):

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