Dylan Crake RMT & R.KIN

A site founded by a Massage Therapist and Kinesiologist wanting to get you moving and feeling better

Anatomy: Low Back

Muscle	Attachement	Nerve Supply	Action	Special Tests
Erector Spinae	O: Broad tendon from iliac crest, posterior surface of sacrum, sacro-iliac ligaments I: Illiocostalis – superiorly to angles of lower ribs to transverse processes of cervical vertebrae Longissimus- superiorly to ribs between tubercles and transverse processes in thoracic and cervical regions and to mastoid process Spinalis – superiorly to spinous processess in upper thoracic region to cranium	Posterior rami of spinal nerves	– Extends vertebral column – laterally flexes vertebral column	ES Strength and Length Tests
Multifidus	O: Posterior sacrum, posterior superior iliac spine of ilium, S.I ligaments I: Obliquely, superomedially to lamina and transverse process or spinous process of vertebrae 2 segments superior	Posterior Rami of spinal nerves	– Stabilizes vertebrae during local movements of spinal column	Spine Rotators and Multifidus Test
Quadratus Lumborum	O: Inferior border of 12^th rib and tips of L1-L5 transverse processes I: Iliolumbar ligament and internal lip of iliac crest	Anterior branches of T12 and L1- L4 nerves	– Extends vertebral column – Laterally flexes vertebral column	Quadratus Lumborum Length Test

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