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Prevertebral muscles

The prevertebral muscles are a group of deep cervical muscles inside the neck located laterally at the upper vertebral column. They are enveloped by the prevertebral layer of the cervical fascia.

Their main task is the bending forward of the skull (ventral flexion). Furthermore they cause a lateral flexion of the cervical column and the atlanto-occipital joint through unilateral contraction.

  1. Longus capitis muscle
  2. Longus colli muscle
  3. Rectus capitis anterior and lateralis muscles
  4. Clinical notes
  5. Sources
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Longus capitis muscle

Longus capitis muscle

The Longus capitis muscle originates at the anterior tubercles of the transverse processes of the 3rd to 6th cervical vertebrae and inserts at the basilar part of the occipital bone. It is innervated by branches of the cervical plexus.

Longus colli muscle

Longus colli muscle

The longus colli muscle has several origins from the 3rd thoracic to 3rd cervical vertebrae. Its insertions are located at the upper cervical vertebrae, the transverse processes of the 5th and 6th cervical vertebrae and the anterior tubercle of the atlas. Hereby, one differentiates between three portions (superior oblique, inferior oblique and vertical portion). The innervation comes from the cervical plexus as well.

Rectus capitis anterior and lateralis muscles

The rectus capitis anterior and the lateralis muscles make up the ventral group of the short neck muscles. The rectus capitis anterior muscle has its origin at the massa lateralis of the atlas, the rectus capitis lateralis muscle at the transverse process of the atlas. Both muscles insert at the basilar part of the occipital bone. In comparison to the dorsal group of the short neck muscles (suboccipital muscles) which are counted among the intrinsic back muscles they are innervated by the ventral branch of the first spinal nerve (C1). Therefore they are considered as secondary back muscles.

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