Thyroid gland
The location of the thyroid gland is in the neck below the larynx and in front of the trachea; it is the largest endocrine gland in the body, producing T3, T4, and calcitonin.
Source
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"OpenStax College, Endocrine Glands. October 17, 2013."
http://cnx.org/content/m44775/latest/Figure_37_05_02.jpg
OpenStax CNX
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