geniohyoid muscle

The geniohyoid is a muscle that attaches to the mandible and the hyoid apparatus and is innervated by the first cervical nerve (C1). Every claim on this page comes from the Leumas anatomy graph and carries its source.

What the geniohyoid muscle is

The geniohyoid is a muscle that attaches to the mandible and the hyoid apparatus and is innervated by the first cervical nerve (C1). The atlas records it as a muscle at the organ scale in the human body.

Where the geniohyoid muscle is

It sits within the muscular system. Only the system is known. The position shown carries almost no spatial information.

What the geniohyoid muscle connects to

The atlas records 8 typed relationships for it, across 5 kinds of connection. part of musculature of pharynx.

Supply and innervation

Innervation: hypoglossal nerve and spinal nerve.

Also called

Also recorded as genio-hyoideus, genio-hyoideus muscle, geniohyoid, geniohyoideus, geniohyoideus muscle and m. geniohyoideus, and 1 more. Searching any of those names reaches this page.

Source

Uberon multi-species anatomy ontology (Mungall et al.), CC BY 4.0. Term UBERON:0001565, version 2026-06-19, retrieved 2026-08-24. Licence: CC-BY-4.0.

• Part of: musculature of pharynx.
• A kind of: anatomical structure, chordate pharyngeal muscle and suprahyoid muscle.
• Innervated by: hypoglossal nerve and spinal nerve.
• inserts into: hyoid bone.
• originates from: mandibular symphysis.

Questions

Where is the geniohyoid muscle?

It sits within the muscular system. Only the system is known. The position shown carries almost no spatial information.

What does the geniohyoid muscle connect to?

Part of: musculature of pharynx.

Is the geniohyoid muscle the same in other species?

Leumas holds the same relationship vocabulary for every species it carries, so where another dataset records this structure you can put the two side by side on /compare.