Wiktionary
anterior auricular muscle
n. A muscle surrounding the auricula or outer ear.
Wikipedia
Anterior auricular muscle
The anterior auricular muscle, the smallest of the three auricular muscles, is thin and fan-shaped, and its fibers are pale and indistinct. It arises from the lateral edge of the galea aponeurotica, and its fibers converge to be inserted into a projection on the front of the helix.