Health Dictionary
Reliable, easy-to-read patient information on common medical conditions — written in plain language, free of jargon, and grounded in current evidence. Browse the most frequent diagnoses, understand what they mean for everyday life, and learn which steps and questions help you have a focused conversation with your doctor.
Suprascapularis
Introduction
The suprascapular nerve arises from the trunk formed by the union of the fifth and sixth cervical nerves. It innervates the supraspinatus muscles and infraspinatus muscles.
It runs lateralward beneath the Trapezius and the Omohyoideus, and enters the supraspinatous fossa through the suprascapular notch, below, the superior transverse scapular ligament; it then passes beneath the Supraspinatus, and curves around the lateral border of the spine of the scapula to the infraspinatous fossa.
In the supraspinatous fossa it gives off two branches to the Supraspinatus muscle, and an articular filament to the shoulder-joint; and in the infraspinatous fossa it gives off two branches to the Infraspinatous muscle, besides some filaments to the shoulder-joint and scapula.
Additional images
Additional images
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Suprascapular and axillary nerves of right side, seen from behind. -
Brachial plexus
External links
External links
- Template:DukeOrtho
- Diagram at physsportsmed.com
- Template:EMedicineDictionary
- Template:SUNYAnatomyFigs – “The major subdivisions and terminal nerves of the brachial plexus.”
Editor-In-Chief: Template:Infobox Nerve C. Michael Gibson, M.S., M.D. [1]