The superior oblique fibres of longus colli connect the mid-cervical transverse processes to the atlas, producing ipsilateral upper cervical flexion-rotation.
| Origin | Anterior tubercles of C3-C5 transverse processes |
|---|---|
| Insertion | Anterior arch of the atlas (C1) |
| Nerve Supply | Ventral rami of C2-C4 |
| Blood Supply | Ascending cervical artery |
| Actions | Flexes and rotates the upper cervical spine to the ipsilateral side |
|---|
The superior oblique fibres are at risk in C1 lateral mass screw placement — their attachment to the anterior arch of C1 must be respected. Longus colli haematoma following anterior cervical surgery can compress all three parts including the superior oblique, producing pharyngeal oedema and airway compromise.
Not palpable externally.
Post-operative anterior cervical haematoma expanding from superior oblique fibre bleeding producing progressive dysphagia and potential airway compromise.
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