Depressor Supercilii Muscle, Anterior View

Description

Arising from the medial orbital rim and frontal process of the maxilla, the depressor supercilii sits deep to the medial fibers of orbicularis oculi and just lateral to the procerus in the glabellar region. Its short fascicles course superiorly to insert into the skin of the medial eyebrow, placing it anterior to the frontal bone and immediately superior to the nasal root. Medially, procerus spans the bridge of the nose toward the lower forehead, while orbicularis oculi forms a concentric ring around the palpebral fissure and overlaps the depressor supercilii superficially. Small muscle. Precise target. Functionally, the depressor supercilii draws the medial brow inferiorly and medially, contributing to vertical glabellar rhytids, the classic frown lines that sit between the eyebrows. This anterior view clarifies how its fibers interdigitate with procerus and the corrugator supercilii complex, a relationship that explains why chemodenervation plans for glabellar lines must balance brow depression against the frontalis-driven brow elevators to avoid medial brow ptosis. It also maps the territory where the supratrochlear and supraorbital neurovascular bundles traverse, a practical caution in periocular injections and surgical dissection around the medial canthus. Use this illustration for head and neck anatomy teaching on muscles of facial expression, including fiber direction, layered relationships, and skin insertions that distinguish these muscles from typical skeletal attachments. It also suits dermatology and aesthetic medicine atlases covering botulinum toxin patterns for glabellar lines, and operative texts discussing medial brow approaches and safe planes near the superomedial orbit. Anatomical accuracy verified by SciePro's Medical Advisory Board.