Muscles of the Neck, Anterior View

Description

Anterior cervical musculature is presented over the man’s face, neck, shoulders, and upper chest, with partial skin transparency allowing the superficial and intermediate layers to read clearly. The sternocleidomastoid runs obliquely from the manubrium and medial clavicle to the mastoid process, forming a prominent anterolateral border of the neck, while the trapezius occupies the posterolateral cervical region as it descends toward the acromion and scapular spine. Medial to the sternocleidomastoid, the strap muscles of the anterior neck (sternohyoid, sternothyroid, thyrohyoid, and often the superior belly of omohyoid) lie in vertical bands over the laryngeal framework and upper trachea, and the platysma can be appreciated as a thin superficial sheet spanning from the mandible inferiorly onto the upper thorax. Fiber direction is emphasized. A clean landmark view. This perspective matters because the sternocleidomastoid partitions the cervical triangles that guide everyday clinical navigation, from palpating the carotid pulse in the anterior triangle to staying oriented during lymph node examination along the anterior border of the muscle. The relationship between the clavicular head of sternocleidomastoid, the supraclavicular fossa, and the more posterior scalene region is the starting map for procedures such as internal jugular venous cannulation and interscalene brachial plexus block, where small errors in surface anatomy can translate into carotid puncture or diaphragmatic paresis from phrenic nerve involvement. Surgeons also rely on these muscle planes when raising subplatysmal flaps in neck dissection and thyroidectomy, keeping traction and cautery oriented to the strap muscles rather than deeper neurovascular structures. Use this illustration in gross anatomy and head and neck modules to teach cervical triangles, muscular compartments, and clinically relevant surface landmarks on a male body habitus. It also fits well in ENT and endocrine surgery teaching files, anesthesia procedure guides, and medical publishing layouts that need an anterior neck muscle reference without a full dissection field. Anatomical accuracy verified by SciePro's Medical Advisory Board.