Page 5 - SONO 260 Chapter 12 The Neck
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• The thyroid consists of a right and left lobe.
• A bridge of tissue, the isthmus, crosses over the midline of the neck anterior to the trachea, providing a link between the two thyroid lobes.
• Occasionally, individuals may have a superior extension of the isthmus. This normal variant is termed a pyramidal lobe.
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