Auricularis anterior is the most vestigial of the three auricular muscles. In most humans it is non-functional, but it retains embryological significance as a remnant of the ear-positioning musculature of mammals.
An expanded entry for Auricularis Anterior.
| Origin | Temporal fascia, anterior portion |
|---|---|
| Insertion | Anterior helix of the auricle |
| Nerve Supply | Facial nerve, temporal branch (VII) |
| Blood Supply | Superficial temporal artery |
| Actions |
|
|---|
It draws the ear forward slightly, a movement that is weak or absent in most people.
The auricularis anterior is relevant in ear reconstruction. The temporal fascia from which it originates is used in the temporoparietal fascia flap for ear and scalp reconstruction. Electromyography of the auricular muscles tests the temporal branch of the facial nerve.
Not visible during voluntary contraction in most individuals.
EMG testing of auricularis anterior to assess facial nerve temporal branch integrity after temporal bone surgery or parotidectomy.
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