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What are the 5 Levels of the Spine?

Published in Anatomy 2 mins read

The 5 levels of the spine are cervical, thoracic, lumbar, sacrum, and coccyx. These regions are composed of individual vertebrae that provide support, flexibility, and protection for the spinal cord.

Here's a breakdown of each level:

  • Cervical Spine: Located in the neck, the cervical spine consists of 7 vertebrae (C1-C7). It is the most mobile region of the spine, allowing for a wide range of head and neck movements.

  • Thoracic Spine: Situated in the mid-back, the thoracic spine comprises 12 vertebrae (T1-T12). This region is connected to the rib cage, providing stability and protecting vital organs.

  • Lumbar Spine: Located in the lower back, the lumbar spine consists of 5 vertebrae (L1-L5). It is the largest and strongest region of the spine, bearing the majority of the body's weight.

  • Sacrum: Located at the base of the spine, the sacrum is a triangular bone formed by the fusion of 5 vertebrae (S1-S5). It connects the spine to the pelvis.

  • Coccyx: Also known as the tailbone, the coccyx is the bottommost part of the spine and is formed by the fusion of 3-5 vertebrae. It provides attachment for ligaments and muscles of the pelvic floor.

In summary, the spine is a complex structure divided into five distinct regions, each with a specific function and anatomical characteristic, working together to support the body and protect the spinal cord.

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