Iliocostalis Cervicis

General information

The Iliocostalis is one of the accessory muscles to inspiration as well as being part of the erector spinae muscles.

Literal meaning

The muscle between the ribs in the loin region.

Interesting information

The iliocostalis are made up of the iliocostalis cervicis and thoracis, which both form the anterior iliocostalis system, and the iliocostalis lumborum, which forms the lateral longissimus.

Origin

Superior margin of the angles of ribs 3 to 6 just medial to attachment of the iliocostalis thoracis.

Insertion

Posterior tubercles of transverse processes of C4 to C6.

Function

Extension of the vertebral column; assist with lateral flexion of vertebral column; postural stabilization of vertebral column.

Nerve supply

Dorsal rami of cervical and thoracic spinal nerves (C4 to T6).

Blood supply

Muscular branches of the occipital artery from the external carotid artery. Dorsal branches of the posterior intercostal arteries from the thoracic aorta.

Relevant research

None specific to this muscle.

Iliocostalis cervicis exercises

None specific to this muscle.