Middle cervicoauricular muscle

The cervicoauricularis medius muscle lies caudal and deep to the cervicoscutularis muscle. It is large and relatively thick at its origin, and becomes narrowed laterally by passing caudally to the concha of auricle. In the dog, it divides into two branches, one of which extends to the caudal side of the auricular cartilage.

Origin: external occipital protuberance and adjacent rostral part of the nuchal ligament cord or cervical raphe

Insertion: tragus, ventrally at the commissure of the auricle, near the parotidoauricularis muscle

Artery: caudal and occipital auricular arteries 

Nerve: caudal auricular nerve

Action: it pulls the auricle in a caudal direction and orients the intertragal notch laterally

Antagonist: parotidoauricularis muscle