MuscleInfrahyoid muscles

Omohyoid

Latin: M. omohyoideus

Location: Neck

View the omohyoid in 3D

Origin

Superior border of the scapula near the suprascapular notch (inferior belly).

Insertion

Hyoid body (superior belly) — joined by an intermediate tendon over the internal jugular vein.

Action

Depresses and steadies the hyoid, tugging the cervical fascia to keep the internal jugular open.

Nerve supply

Ansa cervicalis (C1–C3).

Blood supply

Suprascapular artery.

Clinical relevance

Where it crosses the internal jugular vein it is the surgical boundary between level III and level IV cervical lymph nodes.

Educational anatomy reference, not medical advice. About this content.