Deep Spine

Muscle	Origin	Insertion	Action
Longis colli	--	--	--
inferior oblique	T1-T3	C5-C7	Bilateral: Flexion
Superior oblique	C5-C7	C1	Unilateral: Lateral flexion; rotation in opposite direction
vertical part	T1-T3; C5-C7	C2-C4	--
Longus capitis	C3-C6	base of occipital bone	Bilateral:flexion of neck; unilateral:lateral flexion and rotation to same side
Rectus capitis anterior	transverse process of C1	Inferior bass of occipital bone	Bilateral:flexion of neck
Rectus capitis lateralis	supeior part of transverse process	inferior surface of jugular process of occipital bone	Unilateral:lateral flexion of neck
Rectus capitis posterior major	spinous process of C2	lateral part of base of occipital bone	Bilateral:extension of neck; Unilateral:rotation to the same side
Rectus capitis posterior minor	posterior arch of C1	Medial part of base of occipital bone	Bilateral:extension
Obliquus Capitis superior	transverse process of C1	Between superior and inferior line of occipital bone	Extension of hea; lateral flexion of head and neck
Obliquus capitis inferior	spinous process of C2	Inferior dorsal part of transverse process of C1	Rotates C! to same side
Intertransversarii	C1-T1; T10-L5 inferior part of transverse process to superior part of vertebrae directly below; running on both sides	refer to origin	Unilateral: lateral flexion
Interspinalis	C2-T2; L1-sacrum; spinous process of adjacent vertebrae	refer to origin	extension
Rotators longus	C1-sacrum; transverse process of vertebrae	spinous proceess of second vertebrae above	Unilateral:rotation of spine in opposite direction; Bilateral: extension of spine
Rotatores brevis	transverse process of vertebrae	spinous process of vertebrae directly above	Unilateral:rotation of spine in opposite direction; Bilateral: extension
Multifidus	transverse process of L1-L5; T1-T10/ sacrum and iliac crest; articular process of C4-C7	Spinous process of all vertebrae except atlas	Unilateral: lateral flexion; rotation in opposite direction; Bilateral: extension