Lateral Perspective Of The Sternohyoid Muscle

Description

Shown from a lateral perspective in the anterior neck, the sternohyoid appears as a superficial infrahyoid strap muscle running nearly vertical from the manubrium of the sternum and medial clavicular region toward the body of the hyoid bone. Superiorly it approaches the hyoid just inferior to the mandible, while inferiorly it overlies the upper sternum and the costal cartilages near the sternal angle. Posterior to it lie the laryngeal framework and pharyngeal airway, and deeper infrahyoid layers (sternothyroid and thyrohyoid) sit medial and posterior to its plane. Bony landmarks in the field include the skull, cervical vertebrae, clavicle, scapula, and rib cage. A clean lateral view of sternohyoid matters because it clarifies how the infrahyoid muscles tether the hyoid and larynx during swallowing and phonation, and it distinguishes the infrahyoid plane from the suprahyoid and sternocleidomastoid contours that can confuse learners in profile. Surgeons also think in this plane during anterior neck exposure: separating strap muscles at the midline and retracting them laterally is a routine step in thyroidectomy and tracheostomy, and recognizing the sternohyoid’s superficial course helps anticipate the strap-muscle dissection before reaching the thyroid gland and trachea. A reliable landmark. It also supports discussion of post-intubation strap muscle strain and anterior neck pain patterns. Use this artwork in gross anatomy labs, head and neck modules, and surgical teaching materials that need a clear depiction of the male anterior cervical musculature against consistent skeletal reference points. It also fits patient-facing explanations for thyroid or airway procedures where showing the strap muscles in profile helps orient non-specialists. Anatomical accuracy verified by SciePro's Medical Advisory Board.