top of page
< Back

Middle Scalenes

Region

Origin & Insertion

['Origin: Transverse processes of C2–C7', 'Insertion: Upper surface of 1st rib behind subclavian artery groove']

Synergistic Muscles

['Anterior and Posterior Scalenes']

Joints

['Cervical vertebrae C2–C7']

Primary Actions

['Elevates 1st rib', 'Lateral neck flexion']

Nerve & Spinal Segment

Cervical spinal nerves C3–C8

Cervical and brachial plexus

Interesting

Largest and longest scalene. Assists in deep breathing. [Moore's]

Reversal of Action

Elevates 1st rib with neck stabilized

Common Dysfunctions

Neck stiffness, upper extremity tingling

How to Stretch

Side bend neck away, pull shoulder down.

Trigger Points

How to Strengthen

Lateral neck resistance drills.

Concentric Action

Laterally flex neck

Applications:

Stretches useful in reducing brachial plexus compression

Eccentric Action

Control return from side bend

Isotonic Action

Band resisted side bending

Related Conditions

['Thoracic Outlet Syndrome', 'Brachial neuralgia']

Isometric Action

Hold neutral position against lateral resistance

Exercise Ideas

['Side neck holds', '1st rib depressions', 'Neck stabilization drills']

Related Blogs

Images

Videos

bottom of page