CSP Flexion
90-90deg
Longus Colli
Longus Capitus
Sternocleidomastoid
Rectus Capitis anterior
Scalenes
CSP Extension
70deg
Deep + superficial erector spinae
Splenius Capitis
Suboccipipital muscles
Trapezius
Levator scapulae
CSP Side bending
20-45deg
Erector spinae
Suboccipipital muscles
Trapezius
Scalenes
SCM
Lev Scap
CSP Rotation
70-90deg
Deep Erector spinae
Suboccipipital muscles
Trapezius
Scalenus anterior
SCM
CSP facets plane
Coronal 45