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Scalenus Anterior
Region: Head & Neck Muscles · All head & neck muscles
Scalenus Anterior at a glance
| Origin | Transverse processes of C3–C6 vertebrae |
|---|---|
| Insertion | First rib (scalene tubercle) |
| Actions | Elevates the first rib in breathing; Flexes and slightly rotates the neck |
| Nerve supply | Cervical spinal nerves C4–C6 |
◆ Good to know
The phrenic nerve runs down across its front surface, and the subclavian vein passes in front of it while the artery and brachial plexus pass behind it.
More Head & Neck Muscles
Please note: This page is an anatomy education summary for students and curious readers, not medical advice. Attachment points are given in their classic short form; individual anatomy varies, and detailed dissection-level descriptions belong in an anatomy atlas.