Frontalis muscle
Musculus frontalis
- Latin synonym: Frontal belly of occipitofrontalis muscle; Venter frontalis musculi occipitofrontalis; Venter frontalis musculi epicranii
- Synonym: Frontal belly of epicranius muscle
- Related terms: Frontal belly; Occipitofrontalis: Frontal belly
Definition
Description:
The Frontalis is thin, of a quadrilateral form, and intimately adherent to the superficial fascia. It is broader than the Occipitalis and its fibers are longer and paler in color. It has no bony attachments. Its medial fibers are continuous with those of the Procerus; its immediate fibers blend with the Corrugator and Orbicularis oculi; and its lateral fibers are also blended with the latter muscle over the zygomatic process of the frontal bone. From these attachments the fibers are directed upward, and join the galea aponeurotica below the coronal suture. The medial margins of the Frontales are joined together for some distance above the root of the nose; but between the Occipitales there is a considerable, though variable, interval, occupied by the galea aponeurotica.
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