Knowra Vertebra Vertebra A vertebra is one of the bones forming the vertebral column. Its body and vertebral arch help support the body and enclose the spinal cord, while joints connect it to neighboring vertebrae.
Vertebral body : The large, weight-bearing anterior portion of a vertebra. It carries most compressive load transmitted through this vertebra.
Vertebral column : The flexible axial structure of vertebrae, discs, and associated joints that supports the trunk and protects the spinal cord. A vertebra functions as one load-bearing and protective unit within this larger structure.
Cervical vertebrae : The seven vertebrae of the neck, designated C1 through C7. Their small bodies and distinctive openings reflect the neck’s mobility and anatomy.
Atlas (anatomy) : The first cervical vertebra, which supports the skull and articulates with the occipital bone. Unlike a typical vertebra, it lacks a vertebral body and forms a ring.
Vertebral arch : The posterior part of a vertebra that surrounds the vertebral foramen. Together with the body, it encloses the spinal cord within the vertebral canal.
Spinal cord : The central nervous system structure that carries signals between the brain and much of the body. The vertebral arch protects it as it passes through the vertebral canal.
Thoracic vertebrae : The twelve vertebrae of the chest, designated T1 through T12. Rib-articulating surfaces distinguish these vertebrae from other regional types.
Axis (anatomy) : The second cervical vertebra, whose dens provides a pivot for rotation of the atlas. Its distinctive dens gives this vertebra a specialized role in head movement.
Vertebral foramen : The opening in a vertebra bounded by its body and vertebral arch. Its alignment with neighboring openings forms the vertebral canal.
Intervertebral disc herniation : Displacement of disc material beyond its normal boundary, sometimes compressing nearby nerve structures. A herniated disc can press on nerves near the vertebrae it separates.
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