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Longus capitis and colli

Contents

Anatomy pictures

Longus capitis

Longus capitis - lateral

Position

  • Deep

Origin

  • Anterior tubercles of processus transversi C3-C5

Insertion

  • Inferior surface of the basilar part of the occiput

Main function

  • Neck
    • Flexion
    • Lateral flexion

Segmental nerve innervation

  • Cervical spinal nerves
  • C1-3

Arterial supply

  • Inferior thyroid artery
  • Vertebral artery
  • Ascending pharyngeal artery

Longus colli

Position

  • Deep
  • Where colli and capitis overlap, the colli is deeper

Origin

  • Processus transversi C3-Th3
  • Anterior body of C3-Th3

Insertion

  • Processus transversi C1-6
  • Anterior body C1-6
  • Anterior arch of atlas

Main function

  • Neck
    • Flexion

Secondary function

  • Neck
    • Lateral flexion
    • Contralateral rotation

Segmental nerve innervation

  • Cervical spinal nerves
  • C2-6

Arterial supply

  • Inferior thyroid artery
  • Vertrebral artery
  • Ascending pharyngeal artery

Muscle attachment zones

Longus capitis
Longus colli

MYOFASCIAL LINES

Deep Ventral Line

Synergists

Flexion neck

  • Sternocleidomastoideus
  • Scaleni

Lateral flexion neck

Antagonists

Extension neck

Lateral flexion neck - contralateral side