Synergists II Axial

Spinal column flexion synergists
- Rectus abdominis
- External oblique (bilaterally)
- Internal oblique (bilaterally)
- Psoas major (w/insertion fixed)
- Iliac (w/insertion fixed)
Spinal column extension synergists
- Longissimus (bilaterally
- Iliocostalis (bilaterally)
- Multifidi (bilaterally)
- Rotators (bilaterally)
- Semispinalis capitis (bilaterally)
- Spinalis (bilaterally)
- Quadratus lumborum (assists)
- Intersinalis
- Intertransversarii (bilaterally)
- Latissimus dorsi (assists, when arm is fixed)
Spinal column rotation synergists
- (all unilaterally)
- External oblique (to opposite side)
- Internal oblique (to same side)
- Multifidi (to opposite side)
- Rotators (to opposite side)
Spinal column lateral flexion synergists
- (all unilaterally to the same side)
- Iliocostalis
- External oblique
- Internal oblique
- Longissimus
- Quadratus lumborum
- Psoas major (assists)
- Intertransversarii
- Spinalis
- Latissimus dorsi (assists)
Thoracic elevation/expansion synergists
- Scalenes (bilaterally)
- SCM (assists)
- External intercostals (assists)
- Serratus posterior superior
- Pectoralis major (all fibers if arm is fixed)
- Pectoralis minor (if scapula is fixed)
- Serratus anterior (if scapula is fixed)
- Subclavius (first rib)
Thoracic depression/collapse synergists
- Internal intercostals (assist)
- Serratus posterior inferior

Author

Darkwater

361654

Card Set

Synergists II Axial

Description

Synergists for all of the movements of the axial muscles.

Updated

2023-05-10T01:45:45Z