Quick Facts
Origin: Medial portion of superciliary arch.
Insertion: Skin of eyebrow.
Action: Draws eyebrows inferomedially.
Innervation: Temporal branches of facial nerve (CN VII).
Arterial Supply: Superficial temporal and ophthalmic arteries.
Origin
The corrugator supercilii muscle originates from the frontal bone at the medial portion of the superciliary arch.
Insertion
The corrugator supercilii muscle extends in a superolateral direction and inserts into the skin above the supraorbital margin.
Key Features & Anatomical Relations
The corrugator supercilii lies deep to the frontal belly of occipitofrontalis and the orbicularis oculi muscles.
Actions
The corrugator supercilii muscle works in conjunction with orbicularis oculi muscle, drawing the eyebrows in an inferomedial direction. This action aids in shielding the eyes and is also involved in frowning (Standring, 2016).
List of Clinical Correlates
- Bell’s palsy
References
Standring, S. (2016) Gray's Anatomy: The Anatomical Basis of Clinical Practice. Gray's Anatomy Series 41st edn.: Elsevier Limited.
