Levator Scapulae
Shoulder & Scapula · Upper Limb
The levator scapulae is a strap-like muscle of the posterolateral neck. It descends from the transverse processes of the upper cervical vertebrae (C1 to C4) to the superior part of the medial border of the scapula at the superior angle. As its name suggests, it elevates the scapula and, in doing so, rotates the glenoid cavity inferiorly (downward rotation); when the scapula is held fixed, it instead laterally flexes and extends the neck toward the same side. It receives a dual supply from the dorsal scapular nerve (C5) and direct cervical nerves (C3, C4).
Origin, Insertion, Action & Nerve
Origin
Transverse processes of C1–C4
Insertion
Superior part of medial border of scapula (superior angle)
Action
Elevates the scapula and rotates the glenoid cavity inferiorly (downward rotation). When the scapula is fixed, it laterally flexes the neck to the same side and extends the neck
Nerve
Dorsal scapular nerve (C5) and cervical nerves (C3, C4)
Attachments explained
The Levator Scapulae 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.
Origin
Transverse processes of C1–C4
Insertion
Superior part of medial border of scapula (superior angle)
Action & function
When the Levator Scapulae contracts, it produces the following movement: Elevates the scapula and rotates the glenoid cavity inferiorly (downward rotation). When the scapula is fixed, it laterally flexes the neck to the same side and extends the neck.
As part of the Shoulder & Scapula group of the Upper Limb, it works alongside neighbouring muscles to generate smooth, coordinated movement and to stabilise the structures it acts on.
Nerve supply & clinical relevance
The Levator Scapulae receives its nerve supply from the Dorsal scapular nerve (C5) and cervical nerves (C3, C4). This nerve carries fibres from spinal segment(s) C5, C3, C4.
Because a muscle can only contract when its nerve is intact, injury to the Dorsal scapular nerve or to its spinal roots (C5, C3, C4) can weaken or paralyse the Levator Scapulae, impairing the movements it normally produces (elevates the scapula and rotates the glenoid cavity inferiorly (downward rotation). When the scapula is fixed, it laterally flexes the neck to the same side and extends the neck). This is why knowing the innervation is central to localising nerve lesions in clinical practice.
How to study the Levator Scapulae (the OIANS method)
Let the name carry the action: levator scapulae lifts (elevates) the scapula. Trace it from the upper cervical transverse processes down to the superior angle of the scapula, and the shrugging elevation it produces is obvious. Note the reversal, that with the scapula anchored it side-bends the neck, which explains why it aches after long hours at a desk.
Its nerve supply is worth a moment because it is dual: the dorsal scapular nerve plus direct branches from C3 and C4. Grouping it with the rhomboids under the dorsal scapular nerve, while remembering the extra cervical contribution, is enough to place it correctly.
Frequently asked questions
Where is the Levator Scapulae located?
The Levator Scapulae is a muscle of the Shoulder & Scapula group, located in the Upper Limb.
What is the origin of the Levator Scapulae?
Transverse processes of C1–C4
What is the insertion of the Levator Scapulae?
Superior part of medial border of scapula (superior angle)
What movements does the Levator Scapulae produce?
Elevates the scapula and rotates the glenoid cavity inferiorly (downward rotation). When the scapula is fixed, it laterally flexes the neck to the same side and extends the neck
What nerve supplies the Levator Scapulae?
Dorsal scapular nerve (C5) and cervical nerves (C3, C4)
Is the Levator Scapulae free to study in OIANS?
Yes. The Levator Scapulae is free in OIANS: its full origin, insertion, action and nerve details are open to everyone in the Muscle Directory, and because it belongs to the Upper Limb it is also covered by the free Quiz and Flashcard decks. The other regions, the "All Muscles" deck, and the Progress and Explore tools are unlocked with a one-time Lifetime purchase.
Related muscles
Study the Levator Scapulae
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