Neck condition: a) neck extension; b) normal; c) neck flexion [4

Cervical Flexion And Extension - Anatomy, ROM, Movement

Pontomedullary junction as a reference for spinal cord cross-sectional area: validation across neck positions

Flexion-Extension Xrays of Cervical Spine

Axial and nonaxial ranges of motion of the Cervical Spine

IJERPH, Free Full-Text

PDF] Biomechanical assessment of head and neck movements in neck pain using 3D movement analysis

4144-Article Text-10982-1-10-20180531, PDF

The cervical spine Musculoskeletal Key

Whiplash (medicine) - Wikipedia