Intermediate back muscles

Spinalis

What column is this?

Longissmus

What column is this?

Iliocostalis

What column is this?

Spinalis capitis, cervicis, and thoracis

What muscles are in spinalis column

Spine processes of vertebral segments; occiput

Superior attachment of spinalis column

Erector spinae aponeurosis into posterior ilium and sacrum

Inferior attachment of all columns

Dorsal rami of spinal nerves

Nerve supply of all columns

Trunk extension (bilateral) and ipsilateral bending (unilateral)

Action of all column

Transverse processes and mastoid process

Superior attachment of longissmus column

Longissmus capitis, cervicis, and thoracis

Muscles in the longissmus column

Iliocostalis cervis, thoracid, and lumborum

Muscles in illiocostalis column

Angle of ribs; transverse process of lower cervical spine

Superior attachment of iliocostalis column