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Frontalis Muscle
Muscular System

Frontalis Muscle

Musculus frontalis

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Quick Facts

Origin: Epicranial aponeurosis.

Insertion: Skin of eyebrows and root of nose.

Action: Raises eyebrows and wrinkles forehead.

Innervation: Posterior auricular nerve and temporal branches of facial nerve (CN VII).

Arterial Supply: Superficial temporal, ophthalmic, posterior auricular, and occipital arteries.

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The occipitofrontalis muscle is composed of two muscular bellies divides by an epicranial aponeurosis. The frontal belly of the occipitofrontalis muscle arises from the epicranial aponeurosis, near the coronal suture.


The frontal bellies insert into the skin of the eyebrow and root of the nose. Its muscle fibers also blend with the surrounding muscles facial muscles, including procerus, corrugator supercilii, and orbicularis oculi (Standring, 2016).


The frontal belly raises the eyebrows and wrinkles the skin of the forehead (Standring, 2016).


Standring, S. (2016) Gray's Anatomy: The Anatomical Basis of Clinical Practice. Gray's Anatomy Series 41st edn.: Elsevier Limited.

Learn more about this topic from other Elsevier products

Frontalis Muscle

ScienceDirect image

A Worthen flap is a rotational flap of the entire forehead elevated below the frontalis muscle.

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