The anterior (region) triangle (Fig. 132) of the neck is bounded in front by the midline of the neck, which extends from the symphysis of the mandible above to the sternal notch below; behind, by the anterior border of the sternocleidomastoid; above, by the lower border of the mandible and a line drawn backward from its angle to the posterior boundary. This triangle is subdivided into 3 subsidiary triangles by the anterior and the posterior bellies of the digastric and the superior belly of the omohyoid.
KeywordsRecurrent Laryngeal Nerve Hyoid Bone Thyroid Cartilage Carotid Sheath Inferior Thyroid Artery
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