Frontalis muscle

Last revised by Dr Daniel J Bell on 27 Sep 2021

The frontalis muscle (TA: musculus frontalis) is a paired muscle extending from the supraorbital region to the level of the coronal suture. Flat and quadrilateral in shape, it is one of the facial muscles. Along with the occipitalis muscle, it forms the occipitofrontalis muscle due to a common tendon sheet attachment; the galea aponeurotica 1.

Summary

Clinical importance

The frontalis muscle has clinical significance in relation to facial aesthetics and pathology related to defects of soft tissue and imbalances of motor control. The frontalis muscle is also used in reconstruction; for example frontalis myofascial flaps for cranialization of the frontal sinus 3.

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