Muscle Palpation - Quadratus Lumborum

Muscle Palpation - Quadratus Lumborum

Origins:
1- Iliac Crest
2- Iliolumbar Ligament [Extended TP of L5 and Iliac Crest]

Insertions:
1- Rib 12
2- Transverse Processes of L1 – L4

Functions:
1- Extensions of Trunk @ the Spinal Joints
2- Lateral Flexion of the Trunk @ the Spinal Joints
3- Elevation of the Pelvis @ Lumbo-Sacral Joint
4- Anterior Tilt of the Pelvis @ the Lumbo-Sacral Joint
5- Depression of the Rib 12

Nerve:
Ventral Rami of T12, L1, L2, L3