muscle
DESCRIPTION
AnatomiaTRANSCRIPT
Muscle Action Origin Insertion Innervation Blood supply
Psoas major- Flexion of thigh at hip joint
- Bodies of T12-L5 vertebrae - Transverse processes of L1-5- Intervertebral discs between T12-L5
- Lesser trochanter of the femur
- Anterior rami of L1 to L3
- Lumbar branch of iliolumbar artery
Psoas minor- Weak flexion of lumbar vertebral column
- Bodies of T12-L5 vertebrae- Intervertebral discs between T12-L5
- Pectineal line of the pelvic brim
- Anterior rami of L1
- Lumbar branch of iliolumbar artery
Quadratus lumborum
- Depress and stabilize 12th rib- Weak lateral flexion of trunk
- Transverse process of L5 - Iliolumbar ligament- Iliac crest
- Transverse processes of L1-4- Inferior border of 12th rib
- Anterior rami of T12-L4
- Lumbar branch of iliolumbar artery
Iliacus- Flexion of thigh at hip joint
- Superior 2/3 of iliac fossa- Anterior sacro-iliac - Iliolumbar ligaments
- Lesser trochanter of femur
- Femoral nerve: L2 -L4
- Lumbar branch of iliolumbar artery