Sternohyoid Muscle, Anterior View

Description

Running vertically in the anterior neck, the sternohyoid muscle appears as a narrow infrahyoid strap extending from the posterior surface of the manubrium sterni and medial clavicle to the inferior border of the body of the hyoid bone. In an anterior view it lies superficial and medial relative to the sternothyroid, and it sits just lateral to the midline plane and the paired sternohyoids frame the laryngeal prominence region. Superiorly, its insertion approaches the suprahyoid complex at the hyoid, while inferiorly its origin anchors to the superior thoracic aperture at the sternum. The fiber direction reads straight and longitudinal. Functionally, sternohyoid depresses the hyoid after elevation during swallowing and speech, counterbalancing suprahyoid elevation and stabilizing the hyoid-laryngeal complex. Surgeons pay attention to this muscle during midline approaches to the anterior cervical region, including tracheostomy and thyroidectomy, where strap muscle separation or retraction improves access while protecting deeper midline structures such as the larynx and trachea. A clean landmark. In clinical teaching, its relationship to the ansa cervicalis (C1 to C3) is often discussed, since denervation can contribute to dysphagia mechanics even when the muscle itself looks intact. Use this illustration for gross anatomy lab guides on the anterior neck, otolaryngology and endocrine surgery teaching materials, and patient-facing explanations of swallowing mechanics that need accurate strap muscle placement in a male model. It also fits atlas plates comparing infrahyoid muscles (sternohyoid, omohyoid, sternothyroid, thyrohyoid) in standardized anterior perspective. Anatomical accuracy verified by SciePro's Medical Advisory Board.