Verticalis Linguae

Origin, Insertion, Action & Nerve

Attachments explained

The Verticalis Linguae is defined first by where it attaches. Its origin is the more fixed anchor, usually the proximal or more stable end that stays put during contraction, while its insertion is the more mobile point that is pulled toward the origin when the muscle shortens.

Action & function

When the Verticalis Linguae contracts, it produces the following movement: Flattens and widens the tongue.

As part of the Tongue group of the Head & Neck, it works alongside neighbouring muscles to generate smooth, coordinated movement and to stabilise the structures it acts on.

Nerve supply & clinical relevance

The Verticalis Linguae receives its nerve supply from the Hypoglossal nerve (CN XII).

Because a muscle can only contract when its nerve is intact, injury to the Hypoglossal nerve can weaken or paralyse the Verticalis Linguae, impairing the movements it normally produces (flattens and widens the tongue). This is why knowing the innervation is central to localising nerve lesions in clinical practice.

How to study the Verticalis Linguae (the OIANS method)

OIANS stands for Origin, Insertion, Action and Nerve, the four facts that uniquely define every skeletal muscle. To learn the Verticalis Linguae, work through them in order: picture its origin, trace the muscle to its insertion, reason out the action that shortening between those two points must create, then add the nerve that drives it.

Most students remember the Verticalis Linguae fastest by linking its action back to its attachments rather than memorising each fact in isolation. Once the origin and insertion make sense, the action usually follows logically.

Verticalis Linguae quick facts

Region

Head & Neck

Group

Tongue

Origin

Submucosa of the dorsum of the tongue

Insertion

Inferior (ventral) surface at the margins of the tongue

Action

Flattens and widens the tongue

Nerve

Hypoglossal nerve (CN XII)

Spinal roots

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Frequently asked questions

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