Anatomical Structure and Location of the Tragicus Muscle

Description

Positioned on the anterior surface of the auricle, the tragicus muscle overlies the cartilaginous tragus and sits just anterior to the conchal bowl at the entrance to the external acoustic meatus. Its fibers are shown running within the superficial soft tissues of the external ear, with the highlighted belly contrasted against adjacent auricular musculature in grayscale. Superior and posterior to the tragus, the contour of the helix and antihelix frames the lateral aspect of the pinna, while the preauricular region blends medially toward the temporal fascia and nearby muscles of facial expression. Orientation is clear. It is lateral, superficial, and small. This view matters because the intrinsic and extrinsic auricular muscles, including the tragicus, sit in the operative and injection corridor for common preauricular procedures. When placing incisions for preauricular sinus excision, raising a tragal skin flap in otoplasty, or approaching the temporomandibular joint through a preauricular route, surgeons navigate a thin tissue plane where auricular cartilage, small muscle slips, and branches of the facial nerve and superficial temporal vessels can be encountered in close proximity. For educators, the tragicus also anchors a practical discussion of vestigial auricular motor function and its relationship to the tragus as a palpable landmark used to locate the external acoustic meatus and guide otoscopic positioning. Use this illustration in head and neck anatomy courses, otolaryngology teaching files, and surgical atlases that describe preauricular approaches, auricular reconstruction, or local flap design around the tragus and concha. It also suits patient-facing materials explaining incision placement and postoperative anatomy in otoplasty or TMJ surgery. Anatomical accuracy verified by SciePro's Medical Advisory Board.