Index AllABCDEFGHIJKLMNOPQRSTUVWXYZ S Sacrum The sacrum is a triangular bone formed by the fusion of five sacral vertebrae (S1–S5),... Learn More → Seventh cervical vertebra - C7 C7 is an atypical cervical spine vertebra. It has distinctive features:• Non-bifid spinous process (1)•... Learn More → Subaxial cervical vertebrea The subaxial cervical spine (C3–C7) forms the lower cervical vertebral column and is essential for... Learn More →
