Frontalis 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 | |
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.
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.