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Genioglossus

Other Terms: Musculus genioglossus, Muscle génioglosse

Muscle parts

None

Latin name

Musculus genioglossus

Latin muscle parts

None

Group

Head somite muscle – occipital group (Tongue muscle)

Etymology

In English this muscle’s name is the muscle of the chin and the tongue. The word genioglossus can be divided into the Greek words genion meaning “chin” and glossa meaning “tongue.”

Origin

Superior genial tubercle on the inner surface of the anterior part of the mandible

Insertion

Blends with intrinsic muscles of the tongue from apex to root, most prominently in the middle; some lateral fibers pass back to the middle pharyngeal constrictor; inferior fibers join the body of the hyoid bone

Action

Bilateral contraction helps protract the tongue and produce a concavity in its upper surface, unilateral contraction bends it to the opposite side.

Nerve supply

Hypoglossal nerve (Cranial nerve XII)

Blood supply

Lingual artery from the external carotid artery,

Latin

Musculus genioglossus

French

Muscle génioglosse

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