Main Model
Nasal Cavity, Cavity of Pharynx and Oral Cavity : m Genohyoid
Muscle: Geniohyoid (Suprahyoid muscle)
Origin: Inferior mental spine
of mandible
Insertion: Body of hyoid
Innervation: C1 via hypoglossal nerve (CN XII)
Main Action(s): Pulls hyoid anterosuperiorly; shortens
floor of mouth; widens pharynx