Corrugator Supercilii Muscle, Anterior View

Description

Centered over the superomedial orbit, the paired corrugator supercilii muscles sit deep to the frontalis and just superior to the medial end of the orbicularis oculi, hugging the frontal bone above the nasal bridge (glabella). Their fibers course superolaterally from the medial supraorbital margin into the skin of the medial eyebrow, placing them medial to the frontalis belly and superior to the upper eyelid portion of orbicularis oculi. Adjacent mimetic muscles, including zygomaticus major and minor, levator labii superioris, and orbicularis oris, remain visible in more inferior facial planes. Clear left to right symmetry helps orient midline landmarks. Corrugator supercilii anatomy matters because it is a common target in aesthetic and functional chemodenervation, and its depth and medial position determine both effectiveness and complications. Over-treatment can leave an unnaturally elevated medial brow, while a superficial injection risks diffusion into the levator palpebrae superioris with upper eyelid ptosis. The muscle also lies near the supraorbital and supratrochlear neurovascular bundles, so this anterior perspective supports safe placement by relating the belly of corrugator to the superior orbital rim and medial canthus. Facial anatomy and expression modules in gross anatomy, head and neck dissection labs, and plastic surgery teaching files can use this figure to clarify how corrugator activity produces vertical glabellar rhytids and how it counterbalances frontalis-driven brow elevation. It also fits well in dermatology and ophthalmology reference content discussing botulinum toxin injection maps, tension lines, and periorbital complications. Anatomical accuracy verified by SciePro's Medical Advisory Board.