Frontalis muscle
| Frontalis muscle |
|---|
|
| origin |
| Head fascia |
| approach |
| Galea aponeurotica |
| function |
| Frown, raising eyebrows |
| Innervation |
| Temporales of the facial nerve ( cranial nerve VII) |
The frontalis muscle ( Latin for "forehead muscle", also eyebrow lift ) is a skin muscle that rests under the scalp of the head fascia in the forehead area and does not have any attachment to the skeleton . It belongs to the facial muscles and within these to the scalp muscles ( muscles epicranii ). He is with the muscle occipital also for muscle occipitofrontalis ( "occipital frontal muscle") summarized and presents its front belly ( Venter frontal m. Occipitofrontalis ). In nasal side, it goes directly into the procerus muscle over.
The muscle fibers of the frontalis muscle pull to the galea aponeurotica and are interwoven with the fibers of the neighboring mimic muscles. The muscle enables the forehead to be wrinkled and the eyebrows to be raised .
The frontalis muscle is innervated by the frontal branches ( rami frontales ) of the seventh cranial nerve , the facial nerve .
Web links
- Entry on the frontalis muscle in the Flexikon , a wiki by DocCheck (animated muscle with skin that can be faded in and out)