Suprascapular nerve
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| Nerve: Suprascapular nerve | |
|---|---|
 | |
| The suprascapular, axillary, and radial nerves. (Suprascapular labeled at upper left.) | |
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| The right brachial plexus with its short branches, viewed from in front. (Suprascapular labeled at upper left.) | |
| Latin | nervus suprascapularis |
| Gray's | subject #210 932 |
| Innervates | supraspinatus, infraspinatus |
| From | C5–C6 of brachial plexus |
| Dorlands / Elsevier | n_05/12566859 |
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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.
Disorders
- Suprascapular paralysis is a common condition in veterinary medicine.
Additional images
 Suprascapular and axillary nerves of right side, seen from behind. |
 Brachial plexus |
External links
- Duke Orthopedics suprascapular_nerve
- Diagram at physsportsmed.com
- Suprascapular+nerve at eMedicine Dictionary
- SUNY Figs 05:03-02 - "The major subdivisions and terminal nerves of the brachial plexus."
This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant.
Nerves of upper limbs (primarily): the brachial plexus (C5-T1) | |
|---|---|
| Supraclavicular | root (dorsal scapular, long thoracic) - upper trunk (suprascapular, to the subclavius) |
| Infraclavicular: lateral cord | lateral pectoral
musculocutaneous (lateral cutaneous of forearm) median/lateral root: anterior interosseous - palmar - recurrent - common palmar digital (proper palmar digital) |
| Infraclavicular: medial cord | medial pectoral
cutaneous: medial cutaneous of forearm • medial cutaneous of arm ulnar: muscular - palmar - dorsal (dorsal digital nerves) - superficial (common palmar digital, proper palmar digital) - deep median/medial root: see above |
| Infraclavicular: posterior cord | subscapular (upper, lower) • thoracodorsal
axillary (superior lateral cutaneous of arm) radial: muscular - cutaneous (posterior of arm, inferior lateral of arm, posterior of forearm) - superficial (dorsal digital nerves) - deep (posterior interosseous) |
| Other | cutaneous innervation of the upper limbs |
Acknowledgement and Attribution Regarding Sources of Content
Some of the initial content on this page may be incorporated in part from copyleft sources in the public domain including wikis such as Wikipedia and AskDrWiki. Drug information for patients came from the The National Library of Medicine. Infectious disease information may have come from the Centers for Disease Control (CDC). Differential Diagnoses are drawn from clinicians as well as an amalgamation of 3 sources: 1.The Disease Database; 2. Kahan, Scott, Smith, Ellen G. In A Page: Signs and Symptoms. Malden, Massachusetts: Blackwell Publishing, 2004:3; 3. Sailer, Christian, Wasner, Susanne. Differential Diagnosis Pocket. Hermosa Beach, CA: Borm Bruckmeir Publishing LLC, 2002:7 .
