Frontalis muscle
The frontalis muscle (from Latin 'frontal muscle') is a muscle which covers parts of the forehead of the skull. Some sources consider the frontalis muscle to be a distinct muscle. However, Terminologia Anatomica currently classifies it as part of the occipitofrontalis muscle along with the occipitalis muscle.
| Frontalis | |
|---|---|
Visible at top left colored in red | |
| Details | |
| Origin | Galea aponeurotica (epicranial aponeurotis) |
| Insertion | Orbicularis oculi muscle |
| Artery | supraorbital and supratrochlear arteries |
| Nerve | Facial nerve Temporal branch |
| Actions | Raises eyebrows and wrinkles forehead |
| Identifiers | |
| Latin | venter frontalis musculi occipitofrontalis |
| TA98 | A04.1.03.004 |
| TA2 | 2056 |
| FMA | 46757 |
| Anatomical terms of muscle | |
In humans, the frontalis muscle only serves for facial expressions.
The frontalis muscle is supplied by the facial nerve and receives blood from the supraorbital and supratrochlear arteries.
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