* Infrahyoid muscles - Omohyoid, sternohyoid, sternothyroid, and thyrohyoid.

Nerve supply

2 Bellies of digastric

Stylohyoid: by the facial nerve, by a branch from that to the posterior belly of digastric.

Mylohyoid: by its own nerve, a branch of the inferior alveolar (from the mandibular division of trigeminal nerve), which