Supinator

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Supinator

Last updated on Monday, April 27 2009 by blondarb

Muscle Name: supinator

AKA: Musculus supinator

Abbreviation:

Spinal Nerve Roots:
C6
C7

Brachial Plexus Trunks:
upper trunk
middle trunk

Brachial Plexus Cords:
posterior cord

Named Nerves:
radial nerve

Proximal Attachment: Lateral epicondyle of humerus, supinator crest of ulna, radial collateral ligament, annular ligament

Distal Attachment: Lateral proximal radial shaft

Action: Supinates the forearm.

Needle Insertion: 3 centimeters distal to the midpoint between the lateral epicondyle and the olecranon process.

Activation for EMG: Supinate the forearm.

Pitfalls:

Notes:

Related videos:

Supinator EMG Technique

Supinator EMG Technique
A demonstration of needle placement and activation technique in an EMG study of the supinator muscle.

Related images:

Supinator
This image shows a posterior view of the Supinator

Supinator Anterior view

Supinator Anterior view
This is another view of the supinator muscle.

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