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There are a total of 33 vertebrae in the vertebral column, if assuming 4 coccygeal vertebrae.

The individual vertebrae, named according to region and position, from superior to inferior, are:

  • Cervical: 7 vertebrae (C1-C7)
    • C1 is known as "atlas" and supports the head, C2 is known as "axis"
    • Possesses bifid spinous processes, which is absent in C1 and C7
    • Small-bodied
  • Thoracic: 12 vertebrae (T1-T12)
    • Distinguished by the presence of coastal facets for the articulation of the heads of ribs
    • Body is intermediate in size between the cervical and lumbar vertebrae
  • Lumbar: 5 vertebrae (L1-L5)
    • Has a large body
    • Does not have coastal facets nor transverse process foramina
  • Sacral: 5 (fused) vertebrae (S1-S5)
  • Coccygeal: 4 (3-5) (fused) vertebrae (Tailbone)
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Brant Lockman

Lvl 13
3y ago

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