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Middle Scalene

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Origin

  • Posterior tubercle of transverse process of vertebrae C3-C7

Insertion

  • Superior surface of 1st rib

Actions

  • Elevation of 1st rib (Accessory muscle of inspiration)
  • Bilateral: Flexion of cervical spine
  • Unilateral: Sidebending and rotation of cervical spine to same side

Vascular Supply

  • Ascending Cervical Artery (Muscular branches)

Nerve

  • Cervical spinal nerves C3-C7

Clinical Significance

See Also

References

Created by:
Chris Hauglid on 20 April 2020 05:06:59
Authors:
Last edited:
20 April 2020 05:06:59
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