Rectus Capitis Lateralis

Original Editor - Venus Pagare

Top Contributors - Venus Pagare and Tarina van der Stockt  

Description

 The rectus capitis lateralis is a paired muscle located in the neck.

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Origin

Superior surfaces of the transverse processes of the atlas [1]

Insertion

  Inferior surface of the jugular process of the occipital bone [2]

Nerve Supply

Anterior primary rami of the first cervical spinal nerve (C1)

Blood Supply

The muscle receives blood from the ascending cervical artery, which is a small branch of the inferior thyroid artery from the thyrocervical trunk of the subclavian artery. It also receives blood from the muscular branches of the vertebral artery. The muscle also receives small muscular branches from the occipital artery as it passes it lateral aspect. [3]

Action

  • Stabilizes the head
  • Weakly assists with lateral flexion of the head [4]

References

  1. http://www.wheelessonline.com/ortho/rectus_capitis_lateralis_1
  2. http://www.wheelessonline.com/ortho/rectus_capitis_lateralis_1
  3. http://www.anatomyexpert.com/structure_detail/5264/493/
  4. http://www.gpnotebook.co.uk/simplepage.cfm?ID=-1221263280