Figure 1:
a) Inspection of the spine and physiological characteristics
b) Normal range-of-movement of the cervical spine (A - ante- and retroflexion, B - lateroflexion, C - rotation)
c) Maximum possible range-of-motion of the cervical spine
(from: Ernst A, Meyer-Holz J, Weller E. Manuelle Medizin an der Halswirbelsäule. Stuttgart, New York: Georg Thieme, 1998: 6, Abb. 3a,b,c)