Environmental and behavioral sleep disorders
Jan. 25, 2023
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Thyroid gland and surrounding structures. The right and left lobes are shown, as is a third lobe, the pyramidal lobe, extending superiorly from the isthmus. The thyroid gland lies anterior to the trachea, inferior to the thyroid cartilage of the larynx, and medial to the common carotid arteries and the internal jugular veins. (Source: Gray H, Lewis WH. Anatomy of the human body. 20th edition. Philadelphia and New York: Lea & Fibiger, 1918. Public domain.)